Red-breasted warbler
| Red-breasted warbler | ||||||||||||
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Red-breasted warbler ( Myioborus pictus ) |
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| Scientific name | ||||||||||||
| Myioborus pictus | ||||||||||||
| ( Swainson , 1829) |
The red-breasted warbler ( Myioborus pictus ) is a small songbird from the genus Myioborus in the forest warbler (Parulidae) family. It is the largest species in the genus Myioborus . The distribution area extends from southwestern North America to Nicaragua . The IUCN lists them as “not at risk” (least concern).
features
Red-breasted warbler reach a body length of 15 centimeters and weigh 5.9 to 9.6 grams. The wing length is 6.6 to 7.5 centimeters in the male and 6.6 to 7.1 centimeters in the female. Adult red-breasted warbler of the nominate form have shiny black head, upper, throat, flank and upper chest plumage. The lower chest plumage and the abdomen are carmine red. The black wings have narrow gray feather edges and wide white wing bands. A crescent-shaped white line runs under the eye. The black coverts with the wide, white tips look like a cross-banded lattice. The outer tail feathers are white, the rest of the tail plumage is black, and the beak and legs are blackish.
The subspecies Myioborus p. guatemalae differs only slightly from the nominate form.
Occurrence, nutrition and reproduction
Red-breasted warblers inhabit pine-oak forests, and especially in gorges, pinyon-pine forests together with juniper mostly at altitudes of 2000 to 3000 meters. In winter, individual animals or even small groups swarming for food, mainly consisting of the bird species Townsend wood warbler ( Dendroica townsendi ) and Einsiedel wood warbler ( Dendroica occidentalis ). They are mainly to be found below 2000. They mainly feed on insects and other invertebrates .
They usually lay their shallow, bowl-shaped nest well hidden under stones or tree roots. Only the females take part in nest building. In addition to bark, they also use blades of grass, leaves, plant fibers and animal hair as nesting material. A clutch consists of three to seven eggs; four eggs are usually the norm. The breeding season begins in April and lasts until June. The eggs are hatched in thirteen to fourteen days. The young birds fledge after nine to thirteen days.
Subspecies and distribution
There are two recognized subspecies:
- Myioborus p. pictus ( Swainson , 1829) - Found from southern Arizona and southwestern New Mexico to Oaxaca and Veracruz in Mexico . The northern breeding pairs move to the southern distribution areas over the winter.
- Myioborus p. guatemalae ( Sharpe , 1885) - Distributed from Chiapas in Mexico to northern Nicaragua .
swell
literature
- Jon Curson, David Quinn, David Beadle: New World Warblers. Helm, London 1994, ISBN 0-7136-3932-6 .
Web links
- Myioborus pictus in the endangered Red List species the IUCN 2009. Posted by: BirdLife International, 2009. Accessed November 29 of 2009.
- Red-breasted warbler at ITIS