Image credits: Vulture, by Dori (email@example.com), CC BY-SA 2.0. Zane Grey in 1895, in Penn’s baseball uniform (http://hdl.library.upenn.edu/1017/d/archives/20051010001), public domain.
A couple of weeks ago I was in California, keeping my eyes peeled for interesting birds. Disappointingly, the first bird I saw was a starling – a bird I could have seen almost anywhere in the temperate world. The second was a turkey vulture. Vultures are common and ecologically important scavengers across most of the world*, although none occur in England or Scandinavia. There, eagles, kites, and corvids include carrion in their diets, but the avifauna lacks a carrion specialist – that niche is vacant.
This got me thinking. Continue reading