| 词条 | Yellow-bellied flycatcher |
| 释义 |
| name = Yellow-bellied flycatcher | image = Yellow-bellied Flycatcher - Empidonax flaviventris.jpg | status = LC | status_system = IUCN3.1 | status_ref = [1] | genus = Empidonax | species = flaviventris | authority = (Baird, 1843) | range_map = Empidonax flaviventris map.svg }} The yellow-bellied flycatcher (Empidonax flaviventris) is a small insect-eating bird of the tyrant flycatcher family. Adults have greenish upperparts and yellowish underparts (especially on the throat), with a dusky wash on the chest. They have a white or yellow eye ring that lacks the teardrop projection of Pacific-slope (E. difficilis) or cordilleran (E. occidentalis) flycatchers, white or yellowish wing bars that contrast strongly against the black wings, a broad, flat bill, and a relatively short tail when compared to other members of the genus. The upper mandible of the bill is dark, while the lower mandible is orange-pink. Their breeding habitat is wet northern woods, especially spruce bogs, across Canada and the northeastern United States. They make a cup nest in sphagnum moss on or near the ground. These birds migrate to southern Mexico and Central America. Yellow-bellied flycatchers wait on a perch low or in the middle of a tree and fly out to catch insects in flight, sometimes hovering over foliage. They sometimes eat berries or seeds. The yellow-bellied flycatcher's song can be transcribed as a rough, descending "tse-berk", which can be similar to the more common least flycatcher's snappier, more evenly pitched "che-bek." References1. ^{{cite journal | author = BirdLife International | title = Empidonax flaviventris | journal = IUCN Red List of Threatened Species | volume= 2016 | page = e.T22699839A93750697 | publisher = IUCN | year = 2016 | url = http://www.iucnredlist.org/details/22699839/0 | doi = 10.2305/IUCN.UK.2016-3.RLTS.T22699839A93750697.en | accessdate = 15 August 2017}} External links{{Commons category|Empidonax flaviventris|Yellow-bellied Flycatcher}}{{Wikispecies|Empidonax flaviventris}}
4 : Empidonax|Birds of Canada|Native birds of the Northeastern United States|Birds described in 1843 |
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