Question

The yellow-rumped warbler was formerly split into two species (myrtle and Audubon's warblers), but in 1973 it was reclassified as a single species. “Myrtle” and “Audubon's” warblers have largely allopatric ranges but hybridize where they are sympatric in the Canadian Rockies. They are similar in appearance but are readily distinguished by experienced birders. What further data about these two forms should ornithologists collect and analyze in order to decide whether they should continue to be classified as a single species?

Answer 1

The yellow rumped warbler consists of two species of warbler. One is the Myrtle warbler and the other is Audubon warbler.They have a big breeding range. They have several similarities as well as similarities. There presence is sympatric in the Canadian rockies and they are allopatric in the other regions. These birds are very hardy and adaptable in nature. The Myrtle warbler has a white coloured neck and the Audubon warbler has a yellow coloured neck. Both the warblers travel around the same time. These features of them help the ornithologists to specify them as one specie.