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:
“We have what I would call educational genocide. I’m concerned about learning totally, but I’m immersed in the disastrous record of how many black kids are going into science. They are very few and far between. I’ve said that when I see more black students in the laboratories than I see on the football field, I’ll be happy.”
—Jewel Plummer Cobb (b. 1924)