Hybridisation With Black Tern
Hybridisation between this species and Black Tern has been recorded from Sweden and the Netherlands. 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).
Read more about this topic: White-winged Tern
Famous quotes containing the word black:
“The fact that white people readily and proudly call themselves “white,” glorify all that is white, and whitewash all that is glorified, becomes unnatural and bigoted in its intent only when these same whites deny persons of African heritage who are Black the natural and inalienable right to readily—proudly—call themselves “black,” glorify all that is black, and blackwash all that is glorified.”
—Abbey Lincoln (b. 1930)