Showing posts with label eggs. Show all posts
Showing posts with label eggs. Show all posts

Sunday, July 25, 2021

Question: Why don't my Bourke hen's eggs hatch?

 

Question:  I’ve was trying to breed a couple of Bourkes for the last 2 ½ years with no luck.  Some kind of calamity or birth defects always ruined the clutches.  Out of six clutches they only raised 1 healthy baby to adulthood.

I thought it might be a genetic problem so I got a new male.  Mommy just got through sitting on 3 fertile eggs but abandoned the eggs at 23 days.  I cracked one open and it was still alive , poor thing.  It was FAR from 23 day of gestation.  Maybe half way developed.  I felt bad that I opened it. ...Help!!

 *****

Answer:
Here's my first piece of advice:  Never open an egg unless the hen has abandoned it herself and it is cold.  Eggs DO NOT begin to develop until a hen begins to brood them. So, counting the number of days might be a grave error. She might lay 3 eggs and not begin to brood right away, then sit on the eggs and lay two more ... all eggs will begin to develop when being warmed, and not before.  So, it is possible that those three eggs might all hatch on the same day, which could be the 28th, 29th & 30th days after being laid. Then the last two two eggs a few days after that... Yes, it takes 18 to 21 days for them to develop and hatch, but ONLY after they are being brooded (warmed). If a hen doesn't immediately brood (and most don't), then you can't count from the day an egg is laid. Well, you can count, but don't be surprised if it takes longer to hatch. 

That's why people can order duck eggs and have them shipped to them, taking days to arrive, but still begin to develop when put in an incubator. Any bird or fowl's egg can sit for several days and still be a good egg. All it needs is to be fertile before brooding, which can be several days after being laid. It can wait to start developing days after being laid, and only after it is kept warm can you reliably count the days until hatch. 

Also, it is wise to allow a hen to abandon her eggs herself. Never remove them because you know they are infertile and won't hatch. Hens learn from the experience of infertile eggs. Or, if some hatch and others don't, leave the unhatched eggs in the nest. They help keep newly hatched babies warm.

It sounds to me like your hen is doing everything she can do for you. Just leave her alone and maybe she will do better in the future. Be sure she has a large cuttlebone or more. You can add a brown rabbit salt block...the iodine and minerals are good for them. I highly recommend a copy of "Rosie Birds Guide to Small Exotic Birds." There's a lot of useful information in it. It talks about nest boxes, etc. I hope you have 1 to 2 inches of pine shavings in the bottom of the box so her eggs don't roll around ... a potential problem that might keep them from hatching. Bourkes are not like Budgies and need shavings in their box. I'll put a link at the bottom. 

One last thought. After three clutches of eggs each year, it is wise to remove the nest box so that your hen doesn't become physically stressed. I hope you understand their circadian rhythm and why and when they lay eggs. It's in the book. There's also a link to my videos and my Blog. I hope they can help you be more successful with your sweet Bourkes. 

ROSIE BIRD’S GUIDE TO SMALL EXOTIC BIRDS on Amazon in USA:              

https://www.amazon.com/Rosie-Birds-Guide-Small-Exotic/dp/198676348X/


Peace and Blessings,

Gail (Rosie Bird)



Wednesday, April 11, 2018

Question on Why Eggs Don't Hatch...


Using a book light to candle eggs.
Checking to see if they're fertile or not.

We've covered this topic before, but it's worth addressing again. The question below arrived in email today, and is copied here just as it was written.
 
"Hi There, I have a pair of bourse hen lays eggs try to hatch but no babies come out this is her second clutches. Please let me know the reason and its remedy. Thank you"
 
Our Answer:
 
Hello Jenny, Are you sure you have a male and a female Bourke? It takes two. Sometimes two hens might act like a pair, but they won't have fertile eggs. Or, sometimes a young pair fail to mate successfully. The hen must stand very still, and the male must balance adequately on her back. He carefully bends his his tail under her for their vents to make contact in order to be successful. Some males have to expand their wings for balance, so potential parent birds should not have their wings clipped. 
 
If you have birds of each sex for sure, then maybe with more practice they will eventually succeed. If you are certain the eggs were fertile, but still did not hatch, perhaps they got cold. Or, maybe the hen doesn't have water she can bathe in. Hens have to be able to adjust the nest's humidity, especially if the weather is hot and dry. A place to bathe in is important, but do NOT spray or mist a hen yourself. Let her decide how much humidity is necessary.
 
Less likely is that the babies inside the eggs have some genetic defect, but that is only likely to happen with one bird, not all of them. 
 
Those are some of the most likely possibilities. If you have two birds of the opposite sex, and the male is feeding the female, then eventually they will probably succeed at mating. Meanwhile, don't remove infertile eggs until the hen actually abandons them herself. Hens learn from the fact that their eggs didn't hatch, and are more likely to have fertile eggs in the future. Removing them yourself is not wise. Eggs are due to hatch in 18 to 25 days, but only after they've been warmed by brooding. If she's frightened off the nest too soon, they could get cold and not hatch. She should be allowed to abandon them herself, usually after 25 days for a Bourke hen.  Good luck.

 

 
 
 
Our experienced mother hen, a Rosy Bourke, named Rosie.

Jewel, a Splendid hen.



Male Bourke, Sunset, a blue-edged Cream and his mate,
Starfire, a Lutino Bourke hen. Their first clutch in 2018.
 


 
 
 
 
 

Thursday, September 10, 2015

No Baby Bourke Peeps Yet

Bourke Parakeet, Peaches, is about to become a mother.
She is an opaline fallow hen with red eyes and very sweet.

I was able to candle two of Peaches' eggs. They are fertile. Since this is her first clutch she's very protective. I candled those two while she was briefly outside the nest box. When she hurriedly returned, I didn't get to inspect the remaining eggs as I didn't want to upset her.
 
I've had experienced hens that were not hand fed or hand tamed who allowed me to move them aside to see their eggs or babies without incident. They trusted me.
 
Peaches is hand fed and very tame. However, she will scold and peck at me if I simply place a finger on the edge of the door to her nest box. She's determined to protect her first clutch.
 
I looked in her box again this evening and don't see any egg shells. That's a definite indication that an egg has hatched. No hatches yet. Although, she did move a bit when she turned to scold me and at least one egg is dark and looks like it's on the verge of hatching. Perhaps tomorrow. Her first egg is 21 days old today. Our weather has been cool some days and that can delay hatching, which is usually 18 to 21 days for Bourkes.

Our male Bourke, Storm, is of Normal coloration, so we may end up
with a diverse clutch like this one from another pair a while back.
Since she and the male are inexperienced, it's possible that the first couple of eggs won't be fertile and only the later three will be. The first two were laid several days earlier than the others, which leads me to consider that possibility.
 
May all your birds stay healthy and happy,
Rosie (who also writes as Zara Heritage on Amazon.com.
My novel, Cast Me Not Away, is available as an eBook or in Print). 
 

 
 

Peace and Blessings.


Friday, August 8, 2014

Today's Bourke Question & Answer on Lone Bourke Hen Laying Eggs

Today's photo of Rosie on four eggs.

There are still many questions and answers to post, but little time. This one came today, so all it takes is a quick copy and paste.

Question: LONE BOURKE HEN WON'T QUIT LAYING EGGS

Photo of Fuchsia on eggs.


Hi Gail,
 
First, thanks for creating this blog! I love reading your posts :)
 
I'm hoping you might be able to offer some suggestions on how to discourage my beautiful female normal bourke from constantly laying eggs?  My husband and I have had her for a year and a half now and she has never had a mate. We don't intend on getting another bird.
 
She is such a sweet little character and I honestly don't mind that she lays eggs, but I am concerned for her health. We have taken her to our avian vet and consulted local bird shops, but none of the suggestions seem to deter her.  The vet suggested we remove the eggs as soon as possible (but she continues to lay eggs until she reaches about 4 or 5. The bird shops suggested hard boiling them and putting them back, changing the location of her cage often, and misting her environment with water occasionally to simulate the rainy season?  Nothing seems to work and she is already on her third round this year. 
 
For the most part she is still behaving normally and will come out to interact a few times a day. She's still eating and drinking normally and does not sit on her eggs at night. We only use newspaper on the bottom of the cage and change it regularly (especially if we've noticed nesting behavior). Unfortunately, she will tear up any new paper we put in and create another nest.
 
Any suggestions you have would be much appreciated!

Thanks,
C ---
------------------

My 7 young Rosy Bourkes in a travel cage and about to go to their buyer.
 
Answer:
 
Hello C ---,

I'm curious where she's laying her eggs. I assume she doesn't have a nest box? That would stimulate egg laying, and isn't necessary for birds unless they are intended to lay. Is she using a seed cup or bowl? If so, remove it and feed her in something very shallow. If she's laying on the floor, that's another matter.

Egg laying is stimulated by sunlight ... longer days in the summer and shorter in the winter. She needs to get less light, whether sunlight or artificial light. Do you have a dark room where she can spend the late afternoon, evenings, etc. Allow her only 8 hours of daylight each day and she should quit laying. That might seem mean ... taking her away from the family; however, producing eggs is physically stressful and continuous egg laying puts her at risk. Have plenty of calcium available for her ... cuttlebone, mineral block, oyster shell. She needs to replenish her reserves.

When hens lay eggs and are allowed to sit on them, that's better for them then taking the eggs away. To do so can cause them to quickly lay another clutch. If she sits are her existing eggs for over 20 days and realizes they won't hatch, that might dissuade her from continuing to lay. She needs to know they are not any good. So, by leaving the eggs with her, she will lay fewer eggs and perhaps educate herself that laying is futile.

Even hens with mates sometimes have to abandon eggs that are infertile. They will typically sit for about 24 or 25 days before giving up (this can vary). I always recommend letting hens abandon their eggs themselves, rather than removing eggs before a hen gives up on them. Hens aren't producing more eggs while they're brooding. Also, they won't see you as the "bad" person who stole their eggs.

If she has eggs now, leave them with her. Let her keep brooding. Eventually, she will quit. Then, do the "dark" days treatment before she can start laying again. If she is in a room where you have the lights on late, that could be stimulating her to lay eggs at any time of the year. She's reacting to a longer day length and needs more hours of darkness.
 
Best of luck. Hope this helps.
-------------
 
Additional Thoughts:

Two of my Bourke hens are on their third clutch of eggs this year. Typically, I have allowed them to raise two clutches and hatch a third. When the babies in the third clutch are two weeks old, I remove and hand feed them so that I can take the nest boxes down. If I don't do that, the hens will begin laying more eggs before their previous young have all fledged.
 
This year, I hand fed the first clutches because there were two babies I wanted to keep and wanted to ensure they were very, very tame. Now, I need to decide if I'm going to hand feed their third clutches too. I probably will need to in order to prevent them from laying more eggs...

Young, hand fed Opaline Fallow with Red Eyes.
He was DNA tested and is a male.

Sister of the bird above. She was also DNA tested.
She is an Opaline Fallow Bourke from Rosy parents.

Two hand fed birds in front are promised and will leave us
next week. The Lutino hen in the background is staying.

 
Peace and Blessings

 

Monday, December 23, 2013

Egg Incubation, Bourke Parakeets & Lady Gouldian Finches - Video of Live Eggs

Video of live Lady Gouldian eggs and Bourke Parakeet eggs taken yesterday. They are kept warm in a homemade incubator and turned every few hours ... even through the night. Temperature needs to remain at 98 to 100 degrees Fahrenheit, or 35 to 36 degrees Celsius. A light bulb under a dish of water provides humidity. There's more detailed information on doing this in earlier posts. Search Incubation or check the Archive titles.




MERRY CHRISTMAS!
Peace & Blessings

Thursday, December 19, 2013

Incubating Small Exotic Bird Eggs


Baby Lineolated Parakeets at 10 and 11 days of age. Also in incubator are
Eggs from Lady Gouldian finches and Rosy Bourke Parakeets.
I've written before about incubating and hatching Lady Gouldian finch eggs in the homemade incubator my innovative husband created using a cockatiel nest box.  After hand feeding them from day one, I said I'd never do it again. Well... Never say never!
 
Just like last year, after three clutches our Lady Gouldian finch would not quit laying. Removing the nest box did no good. I had to separate her from her mate, or risk losing her.
 
But, what about all those fertile eggs? I retrieved them from the floor of her cage before moving her to a separate cage away from her mate and their earlier brood of six youngsters.
 
The larger eggs in the photo above are from Fuchsia and Flame, our prolific Rosy Bourke Parakeets. Because of family health issues, Fuchsia's box was not removed when it should have been. She's raised too many clutches this year already. So, I removed the nest box. These four eggs were all laid on the floor of her cage, so I retrieved them too.
 
My prolific pair deciding to mate even without a nest box.

At present, at least three Lady Gouldian eggs have live embryo's in them and so do at least two of the Bourke eggs. Later, I'll try to video the eggs with a light behind them. The little red embryo's already show a heart beating.
 
One Gouldian egg and one Bourke egg have damage to their shell, probably done when they were roughly laid. I don't expect them to hatch. Considered trying to repair their cracks, but haven't.
 
Looks like I will be hand feeding baby birds until the end of February! Probably five or more.

Flame above, Fuchsia (the hen) below.
Very tame, they don't mind an audience.
Rosie Birds has a video of them on You Tube.
 
Bird eggs have to be rolled frequently for 18 to 21 days. Newly hatched chicks require feedings every two hours, even through the night. With the baby Linnies I'm down to every three to four hours. But, still sleep deprived.
 
My husband suggested I throw out the eggs rather than incubate and hand feed because night feedings are so taxing. That's true, but the incubator was already set up for the Linnies and readily available. It was easy to add the eggs and turn them when I feed the baby Linnies.
 
Then, there's the fact that I'm stridently pro-life!
 
And, that participating in saving even little feathered lives makes me feel really good. Can't bring myself to heartlessly cast them away. May we end abortion and spare precious human lives too.

Peace, Blessings,
 and a
Merry Christmas!



Thursday, April 11, 2013

Raising Bourke Parakeets, a Question on Eggs


QUESTION:
I have been looking through your blog but can't find info about when a bird lays too many eggs and I don't want to breed her. It's too soon after the first clutch when she went right back to laying. I removed some of them but now that she keeps going I just keep them in the cage. I wanted her to take a break, I don't believe in over-breeding. So I left the eggs on the bottom of the cage thinking she'd realize no nest, no eggs. Well she sits on them a lot now. I don't even know if they are fertile but I doubt anything would hatch because they've been rolling around on the floor of the cage. My question is, what should I do? There are four eggs (three previous ones had been removed). Should I just put up a nest box and put the eggs inside? Thank for your help! I have been feeding her cuttle bone, eggs with shells and marine sand for calcium. -- Melissa

p.s. the two babies from the first clutch are doing great! They are 4 months old and have their own cage now.
Both are Rosy Bourkes, but notice the color difference.
Some would call the lighter one a "pink" Bourke.
 ANSWER:
Hello Melissa,
 
Yes, I'd give her the nest box back.
 
 
Bourkes typically go right back and have a second clutch and often a third. There is no rest period in between like with some birds. They have all their clutches one right after the other.
 
It's normal for Bourke hens to lay more eggs when you take the others away. That is more physical stress to a hen than being able to sit on the clutch.
 
Young birds may even want a fourth clutch, but that's too many (although Fuchsia did get away with a 4th clutch one year and it didn't hurt her any). However, two clutches is the minimum, not one. Your poor little hen is doing such a good job. I feel sorry for her trying to sit on eggs on the floor.
 
With my oldest hen, I only allowed her two clutches last year and she was willing to quit when the nest box came down. However, with a young healthy hen, three clutches is fine.
 
People who raise canaries will sometimes replace eggs with plastic ones to let them brood so they won't lay more eggs. I suppose that could be done with any bird. However, Rosy Bourkes seem to be in demand just about everywhere, so you shouldn't have a problem finding homes for any youngsters you don't want to keep.
 
If you are adamant you don't want your hen to breed again, you'd need to remove the male in the spring and summer. However, single hens will sometimes lay anyway. The eggs simply aren't fertile.
 
Restricting light helps too. Long days promote the urge to breed, so artificial lights in the house after dark stimulates breeding desires too. When days are short, you can move her to a dark room. Or, in the early evening of summer days try light darkening drapes over all windows in their room to shut out light (but not all day long!).
 
Good luck. She sounds like a sweet bird who is a very good mama. I'd let her have three clutches a year, one right after the other. If she's getting plenty of calcium she should be okay.
------------------------
Update on my own Rosy Bourkes
 as of today...
 
Cherry, my oldest bird, was the last to lay her four eggs.

Fuchsia is my most prolific. She laid five eggs.
Her first egg hatched yesterday, so second will probably
hatch tomorrow as Bourkes usually hatch every other day.

Rosie's first egg hatched today. Notice the piece of shell?
 
Peace and Blessings.
 
 
 
 

Wednesday, October 31, 2012

Lady Gouldian Finch...Egg to Adult

We only have one pair of Lady Gouldians, received in trade for a pair of Rosy Bourkes. Photos below were taken from their first and second clutches. Then they quit brooding, so several eggs went into an incubator. Two hatched and were hand fed to adulthood. Those two are also shown below.






Mom and Dad Lady Gouldian finch, babies under them.













They liked the shredded paper best for nest material.


Their first clutch was five, second clutch was six.


Five not long from leaving the nest.





Fledged and healthy. Colors will change in time.
They all love the swing.




Out of the nest and eating on their own.
Still have spots at edges of their mouths.

These below were raised in an incubator and hand fed to adulthood.

These two hatched in an incubator. Photo taken shortly after hatching.
Homemade incubator. An old cockatiel nest box with a 25-watt
incandescent bulb for heat. A water dish is below screen.
Thermometer at back with another humidifier thermometer
in blue box with a shoe string into the water below.
Water bowl above screen was added just before hatching
to provide extra humidity.


Closer shot of two brand new babies. Other eggs weren't fertile.
Growing. Stuffed full of hand feeding formula
just as their parents would have stuffed them full.
Showing my feathers coming in.
An earlier shot before pin feathers started. We've gone
from looking like little worms to looking like little frogs.




A crop feeder would be a better device than an eye dropper
with these little guys, but I used what I had.


We're flying on our own, but love being friendly.

 
 
A hand feeding. We still sleep in a box at this stage, but
can fly really well. Continued hand feeding for two more weeks.

To learn more about hatching eggs, enter "incubation" into the search engine for previous posts on this subject.

Peace and Blessings.


 


Wednesday, September 5, 2012

Artificial Incubation of Eggs in a Homemade Incubator

I've hesitated to post about this, waiting to see how successful it would be. But, I've decided to go ahead. We have two eggs that are due to hatch in 3-4 days and another that is fertile and should hatch (hopefully) much later.

Thirteen days ago I retrieved five Lady Gouldian eggs that were being ignored by the parents. This after I'd already thrown away 17 she had laid earlier and didn't keep warm. I removed the box and she laid more on the floor of the cage. Two were damaged, but two were not, so they were also retrieved.

Seven Lady Gouldian eggs we are attempting to incubate when parents
didn't. Actually, we only expect three of them to possibly hatch, but
see no reason to give up on the others right away.
My husband brought up the homemade incubator he'd put together several years ago. At that time, we had tried incubating two Bourke eggs from a hen who had been egg bound. With treatment she survived and went on the following year to lay more eggs. However, none of her eggs ever hatched, including the two we tried to incubate. Yet, they did mature right up to the day they should have hatched, just like her own eggs did the following two years. Some genetic abnormality, perhaps?

Back to the Lady Gouldian eggs. Two babies are moving in their shells and I've quit turning them as instructed at several websites. One of the best I found on incubation and egg repair appears to be this one: http://www.gouldianfinch.info/breeding/eggs.htm

This time we created a humidifier thermometer to check humidity. That thermometer is in the blue box with a shoelace extended into the bowl of water below. This process was explained on a website we found.
 
The temp. in the box has been about 99 degrees (supposed to be 99.5F) most of the time. However, when the top of the box is opened to turn the eggs, the temp. drops momentarily. I'm hopeful that's no different than if the mother hen were to leave the box. A 25-watt bulb heats the former cockateil nest box. A dish of water is under the screen that holds the box of eggs and yesterday I added a second bowl of water to increase humidity as advised for the last two or three days of gestation. The item in the bowl shown in the photo is not a bar of soap, it is an absorbent cloth.

Wish us luck, say a prayer, and check back Saturday or Sunday to find out if, God willing, the Lady Gouldian eggs hatch. I certainly hope so, even though it will mean getting up in the middle of the night to feed them for the first week or so. I've already been getting up once to turn the eggs, and rotate every couple of hours during daylight hours. With an angel's help, that has kept two of the five alive so far, and one of the younger eggs has a smaller embryo that is alive too.

How fun it would be to raise them to maturity. But, even if they don't survive...as disappointing as that might be...it's been an interesting endeavor. Seeing them move in their shells is exciting. And, as my husband says, "We've nothing to lose." (Except some sleep, smile).

Peace and Blessings.

Friday, August 10, 2012

Young Lady Gouldian Pair

After successfully raising two clutches of eleven babies, this young pair are now into home redecorating.


They keep adding more and more nesting material.

What they are doing, is rearranging and more nest building. Nothing satisfies them. Their box is overstuffed.


Their second clutch of six healthy youngsters.
There were seven eggs. One was infertile.


She laid a lot of eggs this time!


Peace & Blessings.

Saturday, August 4, 2012

Lady Gouldian Update

After successfully raising two clutches of eleven babies, they are now into home redecorating.

They keep adding more and more nesting material.
Mama has laid over 12 eggs that she sometimes deigns to sit on, but never at night when she's supposed to. Daddy Gouldian, who should warm them during the day, isn't bothering either.

What they are doing, is rearranging and nest building. Nothing satisfies them. They cover the eggs, which I've uncovered several times, then recover them. I thought for a while maybe they were trying to keep them warm with newspaper. Hah!

After candling the eggs, most appear to be fertile, but it seems unlikely any will hatch. I've considered bringing our homemade egg incubator up from the basement and putting it into use, but haven't done so yet. It may be too late and the Gouldian babies aren't as quick to sell, nor for as much, as the Bourke parakeets. A lot of work and risk for less gain, although the babies would be hand fed and tame.

Their second clutch of six healthy youngsters.
In earlier clutches, she stayed on the eggs if I peeked into the box. This time she leaves any time I open the lid.

--------------

Later in day: Decided to count and candle her eggs. There are 15!


Only ten eggs showing, but as
of today there are 15 in total.
She has laid two clutches back to back after fledging a second clutch of healthy babies. By candling them I hoped to identify the good from the infertile or dead. What I learned is that I'm less sure of myself with small finch eggs than with larger Bourke eggs. Over half are definitely fertile, but only one had apparent movement.

As for seeing a heartbeat as expected in a Bourke egg...well, the little hearts are probably too small for me to recognize. One dark image inside an egg was certainly moving, but the others didn't seem to be. Yet, I'm not willing to risk throwing out a healthy little bird in the shell.

I put all 15 eggs back into the nest...those that were dark and those that looked like they were either infertile, or recently laid (there were no visible vessels). We shall wait and see what she does. The eggs were, by the way, all warm. How she keeps 15 eggs warm, I'm not sure, but they were, even though she seldom seems to be sitting on them and it's only 70 degrees in the house.

Peace & Blessings.

Tuesday, July 3, 2012

Prolific Lady Gouldian Finches


Duke and Duchess have successfully fledged their second clutch. All six hatchlings are healthy and eating on their own. Meanwhile, even before the babies left the nest, Duchess had laid two more eggs! Currently, she has five, but her first and second clutches were seven. Probably more eggs to come.

Duke has a mouthful of paper shreds. Baby at left.
Cup holding paper shreds.
I like to have newspaper on the bottom of our cages.
It is changed regularly and keeps everything clean.
Since Duke was tearing it into big shreds, I gave him a
cup full of paper from the paper shredder. He loves it.
Duke is happily revamping the nest box. No chance for me to clean it out, but he makes sure it's nice and tidy for another clutch. He has covered up all evidence of the last clutch and made it look spic and span. One problem, however. He covered up Duchess's first two eggs. Then she laid two more. He covered those up too!

So, today I went into the box and dug around to find those eggs. Found five buried eggs and moved them back to the surface. I candled them first, but since she hasn't been sitting on them I'm not certain if any, or all, are fertile. Two appear to possibly have veins in them, indicating fertility. They were probably warmed by the previous youngsters who are still returning to the nest box at night. The first clutch of five babies didn't do that, but this second clutch of six does return nightly.

Held the camera inside the cage for this photo.
Duke with shreds in his mouth.

Eight birds require a lot of food. Several dishes on the
bottom of the cage with a variety of food for the
babies to learn to eat on their own.

Duchess is still feeding her brood, even though they are eating on their own as well. Duke isn't interested in the young birds and has even knocked one or two off the perch when they've been in his way. Soon they will be moved to a cage of their own.

Peace & Blessings.