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Some Hokkaido Winter Passerines

10,000 Birds

One website states that only 15% of the birds that hatch make it to become first year breeding adults, 6% make it to the second year, and 3% to the third year. Other species – such as starlings or t**s – stealing the nesting site of Eurasian Nuthatches is one of the major reasons for breeding failure.

Iran 243
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Urban Ornithology: 150 Years of Birds in New York City–A Book Review

10,000 Birds

The authors’ detailed delineation of problems with the accuracy of NYC breeding bird surveys or with the limits of historical writings may test a reader’s patience. Because, as this book demonstrates so well, it is sometimes important to look back in order to move forward. It’s a very mixed chapter.

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15 Australian Birds (Episode 6)

10,000 Birds

According to Tim Low (in “Where Song began”), “so easy were they to breed that by 1859 they cost less to buy in London than in Sydney.” ” Funny how the difficulty of breeding a species can be illustrated in simple monetary terms. Is it offensive to say that Australian Zebra Finches breed like rabbits?

Australia 147