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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?

Birds 147
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A Question of Migration

10,000 Birds

Birds, because they fly, don’t store fat without paying a huge cost, which might in turn make them more vulnerable to variations in both food supply and thermal stress than ground dwelling animals. Annals of the New York Academy of Sciences, 1046 (1), 282-293 DOI: 10.1196/annals.1343.026 And then there is the loon. 2 PIERSMA, T.,

Research 192