Rochester

Mariah and Kaver with three beautiful speckled eggs. Inside three new peregrines are developing, growing very fast.

Kaver and Mariah are very good parents. Mariah has raised and fledged 38 juvi's. She started breeding with Sirocco in 1998 on the Kodak Tower in Rochester. He did not come back in the spring of 2002. Kaver appeared and Mariah accepted him as a new partner and an excellent choise she made for Kaver turned out to be a fine father. They started their first nest in 2002. So this is their 7th year together. Mariah was born in 1996, Kaver in 2000.

Zwolle

The WSN and Electrabel are still working very hard to get the livestreaming from this nestbox online. It is not working out the way they wanted but they are doing everything they can to get things working before the eyases will hatch. Expected hatchdate: April 19

Terminal Tower Cleveland

Derby

Sussex Heights

De Mortel

Toronto Sheraton

Ahhh this keeps on moving me. Little precious Rhea Mae, the Rochester chick from 2006 has laid her second egg yesterday 3rd of April. She is one of the eyases on my Eyases Development page:

http://www.falcoperegrinus.nl/Eyasesdevelopment.html

To see her here as a grown up adult peregrine is so great. To know she did alright, survived the first hard year as a juvenile and got herself this scrape and the resident male Tiago: you did a great job girl. You're a real daughter from your magnificent mother Mariah of Rochester!

Rome

Aria and Vento . The embryo's inside the egg have only 4-5 more days to go. From day 26 preparations start for the hatchingproces. The first hatchdown or neosoptiles is almost complete.

The beak is starting to turn towards the aircell. Eggwhite is almost gone and the left yolk starts to be sucked into the abdomen. These last days the ossification of the skeleton is proceding very quickly. The little baby inside the egg is reacting to light and sound.

Nijmegen

Indianapolis

Columbus Ohio

Something is very wrong here. It's been a week since Scout laid her egg. She will not lay a second one as long as this one stays in the box. Both peregrines are very confused. They do not seem to know what to do. They come in the box, stand over the egg for a long time, sit down, get up, start scraping in the bowl, walk out, come back, breed for a minute and leave the box.

What is happening? Well as soon as there is an egg, in both the male and the female the prolactine levels start to rise. In order for the female to lay eggs she needs a lot of FSH and LH . These hormones make eggs to ovulate. Prolactine and FSH/LH do not go together.

The egglaying proces has been interrupted. Maybe due to the snow, cold, rain of the second half of March. That means the first clutch has failed. She will not start a second clutch as long as this egg in the scrape. And this egg will not hatch, it is not fertile anymore. It has been there for a week, it is most likely foul.

So it would be the best to take this egg out, so the peregrines can start their second clutch.

Derby: turning the eggs

Both peregrines change incubatingduties. And they turn the eggs almost every hour. So they have started incubating. Maybe there will be one more egg tomorrow. Let's hope so. Would be just great!

I love this webcam position. It is so close, the photo's are beautiful. Thanks!

Check out the DerbyBlog:

http://derbyperegrines.blogspot.com/

Oberhausen

Unfortunately the webcams have been offline all day. Just before sunset they cam eback online, so I have only these 4 photo's. Tomorrow it be will be much better I'm sure.

The little ones do grow. That is quite obvious.
If you want to see how the development is from eyas to juvenile just check this out:

http://www.falcoperegrinus.nl/Eyasesdevelopment.html

Harrisburg

Harrisburg: it will be 5 eggs this season. And that is more than enough. Bringing up 5 babies it quite a job. Incubating 5 eggs as well. That needs a lot of turning.

Bologna: First Hatch!