Notes

01 February 2011
Comments Notes One of the most likely forms of avian play involves a bird carrying an object into the air to repeatedly drop and catch it in flight. With some variations, drop-catch behaviour has been observed in raptors, gulls, corvids and possibly hirundines (Ficken 1...
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Letters

01 February 2010
Comments Letters The recent paper by Richard Broughton (Brit. Birds 102: 604-616) summarised a welcome analysis of the relative importance of the various criteria used to separate Willow Poecile montana and Marsh Tits P. palustris. We consider, however, that the con- clus...
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