10,000 Birds

JULY 6, 2023

Here’s a video. In the slightly frighteningly named journal “Science of The Total Environment”, there is a paper on organochlorine compounds in Purple Heron eggs nesting in sites located around a chloralkali plant (Ebro River). Summary result: relevant chemicals emitted by the plant can be found in the eggs.

Birds 130

Birds Eggs Breeders Breeding 130

10,000 Birds

JULY 18, 2022

According to the HBW, when breeding, male birds do most of the incubation and parenting while females often leave the nest up to one week before the eggs hatch. According to Couzens, after laying the eggs, females sometimes immediately abandon their first mate and pair up with another male. But maybe that is actually a good thing.

Birds 162

Birds South Korea Japan Abandon 162

10,000 Birds

MARCH 11, 2011

With a hardiness that belies their delicate looks (but helps explain their phenomenal success), these pioneering pigeons are already sitting on eggs at at least one location in Montana. So right now I’m feeling pretty good about Eurasian Collared-doves. It’s just that the exceptions are so much more attention-grabbing.

Montana 144

Montana 2011 New York Bahamas 144

10,000 Birds

JUNE 8, 2023

The Large-billed Crow ( video ) is one of the natural enemies – in the study above, it predated 19 eggs from four pitta nests. Of course, what is shown here (and in the video ) is a female – kind of typical for this blog. This should not be a problem in Shanghai as the pitta has not been reported to breed here.

Birds 130

Birds China Research Tenant 130