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:
“Gone are the days when my heart was young and gay,
Gone are my friends from the cotton fields away,
Gone from the earth to a better land I know,
I hear their gentle voices calling “Old Black Joe.””
—Stephen Collins Foster (1826–1864)