"Young Robins commonly disperse to breed between 1 and 4 miles from their place of birth, but only 5 per cent, have be…"

"In Lapland, all species start breeding 1–2 months later than in Britain, and the breeding season is much less extende…"

"The limicoline species in June and July, and the passerine species in late autumn, cross the North Sea primarily with…"

"... Female song is uncommon in birds."

"... It is uncommon among birds for the female to be as brightly coloured as the male. ... A brightly colored female w…"

"... 'duetting' is uncommon in birds, but has been recorded for various tropical species."

"The Cambridge Bird Club published David Lack's first book, The Birds of Cambridgeshire, a year after he completed his…"

"Lack's life-long passion for birds began at an early age in the marshes of rural Norfolk. At nine, he compiled his fi…"

"The more I thought about it, the more obsessed I became with the idea of a swimming journey. I started to dream ever …"

"From water level, I observed the mating joined in flight like refuelling aircraft, and the random progress of the clo…"