The butcher bird and cats
The butcher bird and cats
Red-winged Warbler was created in 1849.
White-winged Warbler was created in 1917.
Red-winged Grey Warbler was created in 1881.
This warbler of the eastern parts of North America currently is seeing a decline in numbers, most likely due to hybridization with the related blue winged warbler.
Listed as Near Threatened by the IUCN. No exact figures for numbers are available.