I stumbled across Eric Hosking's pictures of owls this evening. Love those eyes and feathers. His most famous image is probably the 1936 image below of an owl with its prey.
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This last image is said to be the first time a flash was used to capture a bird in flight, in 1948.
Hosking is apparently the only artist to make a living by taking pictures solely of birds - his reputation initially being made by news coverage of the loss of his left eye after being clawed by a tawny owl. I know it sounds made up, but it isn't (I went beyond wikipedia to make sure).