Red Warbler
Purple - rumped Warbler ( Ergaticus ruber)
The Purple - rumped Warbler ( Ergaticus ruber ) is a small passerine bird in the family of warblers ( Parulidae ).
Features
Purple - rumped Warbler reach a body length of thirteen inches and a weight of 7.6 to 8.7 grams. The wing length is 5.7 to 6.5 inches in the male, the female, 5.6 to 6.3 centimeters. Adult Purple Warbler of the nominate have a bright red to red - head, top and bottom plumage and white to silver-white ear covers often edged with black. The wings and the tail feathers are brown with dull red feather edges. The subspecies Ergaticus r. melanauris has silver-gray ear coverts; the subspecies Ergaticus r. rowleyi as white to silver-white in the nominate form. Carry Juvenile specimens of the nominate form a yellow-brown to brown plumage with dull red feather edges on the brown wings and brown tail feathers. The ear covers are silver.
Resources, nutrition and reproduction
The distribution area is limited to Mexico. The birds live in pairs, mixed pine-oak forests with dense undergrowth at altitudes 2000-3500 meters. Their breeding areas are usually at altitudes above 2800 meters. Over the winter they move into deeper regions up to heights of 2000-2400 meters. Mostly they feed on insects, which they ferret out mainly in the dense undergrowth. Their nest they lay well hidden on the bottom. The incubation period usually lasts from February to May About breeding behavior, there are no precise tests, maybe it is similar to the closely related Rose warbler ( Ergaticus versicolor).
Subspecies
There are three recognized subspecies:
- Ergaticus r. ruber ( Swainson, 1827) - Central and Western Mexico to the south to Oaxaca and Central Veracruz
- Ergaticus r. melanauris RT Moore, 1937 - Mexico ( Sinaloa, Durango and southern Chihuahua )
- Ergaticus r. rowleyi Orr & JD Webster, 1968 - Mexico (in Guerrero and Oaxaca to the south of )
From the IUCN are classified as " not at risk " out (Least Concern ).