Hybridisation in terns
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Hybridisation in terns is not as frequent as in gulls, however some mixed pairings have been noted.
Marsh terns[edit]
Hybridisation between White-winged Black Tern and Black Tern has been recorded from Sweden[1] and the Netherlands.[2] Two juvenile birds at Chew Valley Lake, England, in September 1978 and September 1981, were also believed to be hybrids; they showed mixed characters of the two species, specifically a combination of a dark mantle (a feature of White-winged Black) with dark patches on the breast-side (a feature of Black Tern, not shown by White-winted Black).[3][4]
See also[edit]
References[edit]
- ^ Template:Sv Alexandersson, H. (1979) En hybridisering mellan vitvingad tärna Childonias leucopterus och svarttärna Childonias niger på Öland 1978 Calidris 8: 151-53
- ^ Template:Nl Van IJzendoorn, E. J. (1980) Broedgeval van Zwarte Childonias niger × Witvleugelstern C. leucopterus Dutch Birding 2: 62-65
- ^ Vinicombe, Keith (1980) Tern showing mixed characters of Black Tern and White-winged Black Tern British Birds 73(5): 223-25
- ^ Davis, A. H. (1980) Tern showing mixed characters of Black and White-winged Black Tern British Birds 75(12): 579-80