Gilbuf tyrant
| Gilbuf tyrant | ||||||||||||
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Gilbufertyrant ( Empidonax flavescens ) |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Empidonax flavescens | ||||||||||||
| ( Lawrence , 1866) |
The yellowish flycatcher ( Empidonax flavescens ) is a small, insects eating birds from the family of tyrants . The English name is Yellowish Flycatcher . Its distribution area extends from the plateaus of southeast Mexico to the south or west of Panama . There it lives in the cooler mountain forests, preferably on the edge of the forest or near clearings. It breeds at altitudes between 800 and almost 2500 meters. The cup-shaped nest is built from plant fibers and moss and is two to four and a half meters above the ground. The female typically lays two to three white eggs that are speckled with gray. The breeding season is 14 to 15 days. The chicks remain in the nest for 17 days after hatching. The adult animals become 12.5 centimeters long and weigh about 12 grams.
The top of the Gilbufertyranns is olive-green and the underside ocher-colored, slightly yellowish towards the chest. The wings are black, the feathers have two yellow-brown stripes. There are white dark circles around the eyes that end in a triangle at the back. Both sexes can hardly be distinguished from each other. The young birds, on the other hand, are browner on the top and weaker yellow on the underside than the adults. The Gilbufertyrann can be distinguished from other birds of the family of tyrants by the characteristic dark circles.
Outside the breeding season, the lively animals are loners. In addition to insects, spiders and small berries are also part of the diet of the Gilbuf tyrant. He finds food on the leaves of trees or in flight and occasionally on the forest floor.
literature
- FG Stiles, AF Skutch, D. Gardner: A guide to the birds of Costa Rica. Cornell University Press, 1990, ISBN 0-8014-9600-4
- GS Spicer: Nasal mites from birds of a Guatemalan cloud forest (Acarina: Rhinonyssidae). In: Parasitol 70/1984, pp. 794-802. PMID 6536265
- K. Eisermann, U. Schulz: Birds of a high-altitude cloud forest in Alta Verapaz, Guatemala. In: Rev Biol Trop 53/2005, pp. 577-594. PMID 17354466
Web links
- Illustration of a young bird
- Videos, photos and sound recordings on Empidonax flavescens in the Internet Bird Collection
- Empidonax flavescens inthe IUCN Red List of Threatened Species 2013.2. Listed by: BirdLife International, 2012. Retrieved February 6, 2014.