Species: Geothlypis trichas
Common Yellowthroat
Species
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Encyclopedia of Puget Sound
Upperparts olive-brown; throat and breast yellow; sides tan; belly whitish; adult male has a broad black mask, bordered above by white; immature male has a pale eye ring and an indistinct mask; 11-14 cm long (NGS 1983).
Classification
Kingdom
Animalia
Phylum
Craniata
Class
Aves
Order
Passeriformes
Family
Parulidae
Genus
Geothlypis
NatureServe
Classification
Other Global Common Names
Mascarita Común - paruline masquée
Informal Taxonomy
Animals, Vertebrates - Birds - Perching Birds
Formal Taxonomy
Animalia - Craniata - Aves - Passeriformes - Parulidae - Geothlypis - Exhibits relatively deep mtDNA separations between populations in Washington and those in the central and eastern states (Ball and Avise 1992). Populations around Lake Chapala, Jalisco, regarded as a distinct group, CHAPALENSIS (AOU 1998). Sometimes regarded as conspecific with G. ROSTRATA, G. FLAVOVELATA, and G. BELDINGI (AOU 1983). Further study required of species relationships with GEOTHLYPIS (AOU 1998).
Ecology and Life History
Upperparts olive-brown; throat and breast yellow; sides tan; belly whitish; adult male has a broad black mask, bordered above by white; immature male has a pale eye ring and an indistinct mask; 11-14 cm long (NGS 1983).
Migration
true - true - true - Winter: withdraws from areas north of the southern U.S. Arrives in Puerto Rico by September-October, departs mostly by the end of April but some remain into June; appears to congregate and pair before migrating north in spring (Raffaele 1983). Migration in Costa Rica extends from mid-October to November and from April to early May (Stiles and Skutch 1989). Present in South America mostly October-April (Ridgely and Tudor 1989).
Non-migrant
true
Locally Migrant
true
Food Comments
Eats various small invertebrates obtained among low plants.
Reproduction Comments
Clutch size is 3-6 (usually 4). Usually produces two broods per year. Incubation, by female, lasts 11-13 days. Young are tended by both parents, leave nest at 8-10 days. Polygyny has been observed.
Ecology Comments
Density was about 1.5-2.5 territories per ha in southeastern Massachusetts (Morimoto and Wasserman 1991).
Length
13
Weight
10
Conservation Status
NatureServe Global Status Rank
G5
Global Status Last Reviewed
1996-12-03
Global Status Last Changed
1996-12-03
Other Status
LC - Least concern
Distribution
Conservation Status Map
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Global Range
BREEDS: southeastern Alaska to central Saskatchewan and Newfoundland, south to northern Baja California, southern Mexico, southern Texas, Gulf Coast, and southern Florida. WINTERS: northern California, southwestern U.S., southern Texas, Gulf states and South Carolina south through Mexico and the West Indies (fairly common in Puerto Rico, rare in Virgin Islands, Raffaele 1983), to Panama and rarely into Colombia, Venezuela, Netherlands Antilles.