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Conservationists at the Royal Society for the Protection of Birds (RSPB) have been using remote controlled drones to watch the nests of endangered breeds and monitor the progress of reintroduced species. Over time, it’s these physiological changes that can disrupt animals’ breeding or rearing habits.
The Kerkini Lake National Park is my favourite birding area in the whole of the Balkans and while I’ve been here in April and again (migration), September (migration), October (coffee break), December and January (wintering), this was my first time in the breeding season, in May. But nowadays, they, too, breed here, about 20 pairs this year.
The photo above is a breeding-plumaged Myrtle Warbler by Kelly Colgan Azar. A thread on BirdChat two weeks ago reminded me of a fascinating paper that went up online last fall and was published in the January 2014 issue of Evolution: Migration, mitochondria, and the Yellow-rumped Warbler (Toews et al.). So Toews et al.
There is much to enjoy and appreciate here and I only wish I could have tested out some of these species accounts in pelagic waters before writing about them (sadly, the 10,000 Birds pelagic to Antarctica was canceled this year). The description then goes into detail about adult (breeding and nonbreeding), juvenile, and immature plumage.
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