10,000 Birds
SEPTEMBER 6, 2022
In Daurian Redstarts , personality traits (specifically, whether a bird is shy or bold) partly determine how good an individual is in rejecting cuckoo eggs in its nest. Apparently, birds that are fast in exploring new things – bold birds – are better at rejecting parasitic eggs ( source ).
10,000 Birds
AUGUST 2, 2022
Whittaker’s adventures in olfactory research take unexpected turns into genetics, chemistry, and the halls of academia. One of Whittaker’s first experiments was to place other birds’ preen oil on the nests and eggs of Dark-eyed Juncos. Whittaker’s research road is more serpentine than most academics.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
10,000 Birds
OCTOBER 28, 2015
That’s the finding of researchers from the University of Sheffield in the UK, published in Proceedings of the Royal Society B. (If By studying Zebra Finches and domestic chickens, the scientists discovered that multiple sperm appear necessary for a fertilized egg to progress to the embryo stage (a process called “polyspermy”.)
Critter News
JUNE 28, 2009
Nearly 95 percent of the 90 billion table eggs produced in the United States come from high-density cage systems. The value of all egg production in 2007 was $6.68 In South Carolina egg sales tally about $90 million annually. Tags: battery hens eggs USDA farm animal welfare us agribusiness.
10,000 Birds
JUNE 21, 2019
Today, we know a little more, such as the fact that an eagle couple produces one egg every two years, but numbers remain low, too low. And, he tells us about the time he was attacked by a parent Philippine Eagle as he handled an egg at the nest, hundreds of feet above the ground. It’s a future that seems fragile.
10,000 Birds
APRIL 11, 2013
Peripatetic ornithologist Nick Sly has long been a friend of the blog here and has contributed such classics as Green-rumped Parrotlets from Egg to Adult and Forpus passerinus and the Ornithologists of Masaguaral. Please read and then vote for either Nick or Maria’s research! To win, we need your votes! Thanks for your support!
10,000 Birds
JUNE 27, 2017
They emerged from their bloody rampage leaving fifteen adults dead, and fifteen destroyed nests with either smashed or missing eggs. There are eggs that are not viable, nestlings who fail to thrive, natural predators who snatch a chick for a meal, freak storms that blow through and destroy part of a population.
Expert insights. Personalized for you.
216 
Let's personalize your content