Extreme Birds: The World's Most Extraordinary and Bizarre Birds

I recognised the bird on the cover as a shoebird from a national geographic article but didnt know that it was the 'most patient feeder'. This book is about the record holders. If it were just that it could have come out on cards with stats. The book is at its best with its explanation for flamingo's long legs, ostriches large eyes, jacana's spread out toes tied to their environment.
The literature goes into more depth about say a humming bird's flight with its digits beyond the fast wing-beat rate. Having seen the shorebirds always on ground, looking at a picture of godwits in flight, it came as a surprise to me that they and plovers migrate so far.
'Biggest communal nest' of sociable weaver had me thinking of beaver's house.