Inexperienced-winged Teal are discovered around the Northern Hemisphere. Birds within the Outdated International, Not unusual Teal, breed from Europe via Asia to the Aleutian Islands. New International birds, Inexperienced-winged Teal, are discovered throughout Alaska and Canada to many portions of the northern United States. The 2 populations are actually thought to be to be races of the similar species. This standing would possibly trade, as a result of genetic analysis displays that, even supposing the races percentage one haplotype, they another way have very other mitochondrial DNA.
Since transferring to Washington, Erika and I’ve looked for Not unusual Teal. Those geese are of informal incidence alongside each coasts of North The usa. Now we have scanned hundreds of Inexperienced-wing Teal. On 1 March 2022 we met succeeded. Not unusual Teal lack a white, verticle line in the back of their breasts. They’ve sturdy faded traces around the higher aspects in their faces and below their eyes. Not unusual Teal heads are relatively paler than the ones of Inexperienced-winged Teal. Most likely the white patches at the again ends of Not unusual Teal are a brighter white than the yellowish spots on Inexperienced-winged Teal. The perimeters of the Not unusual Teal are extra coarsely barred than at the American race. Our duck displays most of these box marks. Much less glaring is a white, horizontal stripe shaped via the scapular feathers that are supposed to be glaring on Not unusual Teals. Word that the scapulars on our duck are white-edged, now not darkish like on a Inexperienced-winged Teal. Now not having this stripe obvious would possibly point out that this hen is a hybrid, however hybrids most often display the Inexperienced-wing’s vertical aspect stripe. On account of the preponderance of all of the different box marks, we don’t have any bother calling this particular person as a Not unusual Teal.
