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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Letters

01 November 1990 Comments Letters Sexual dimorphism of Marsh Tit. Both Gosler & King (1989) and Nilsson & Smith (1988) have recently reported sexual dimorphism in the intensity of the black of the cap on Marsh Tits Parus palustris (adults and first-years), males having markedly...
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Letters

01 March 1935 Comments Letters SIRS,--In view of t h e recent article b y Brian Roberts on t h e Gannet colonies of Iceland (antea, pp. 100-105) it may be of interest to record the following observations on the colony a t Grimsey, off north Iceland. Roberts recorded twenty-one pairs of...
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Letter

01 December 1934 Comments Letters SIRS,--Messrs. H. Morrey Salmon and R. M. Lockley, in their paper on " The Grassholm Gannets--A Survey and a Census " (antea, Vol. X X V I I . , pp. 142-152) appear, in their historical survey of t h e colony, to have overlooked a paper dealing with the c...
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