CHESTNUT-SIDED WARBLER

CHESTNUT-SIDED WARBLER (Setophaga pensylvanica)
DESCRIPTION: The Chestnut-sided Warbler breeding male has a green-yellow crown, a white throat and under parts, a streaked grey-brown back, and chestnut-colored sides (hence the English name). The breeding female has duller colors with barely any chestnut-colored sides. The bird is around 12 cm (5 inches) long.
VOICE: https://www.xeno-canto.org/species/Setophaga-pensylvanica
NAME: Warblers are thus called thanks to their generally melodious songs. The Latin genus name ‘Setophaga’ means ‘eating moths’, and the species name ‘pennsylvanica’ likely refers to the location where the first specimen was found.
HABITAT: Forest edges and scrub land along fields and clearings.
DIET: Forages for insects and other invertebrates on leaves.
NESTING: The nest is an open cup placed in a shrub close to the ground. Between three and five creamy eggs are laid, incubated by the female. Both parents feed the chicks. Nest frequently parasitized by the Brown-headed Cowbird.
DISTRIBUTION: Breeding range includes southeast Canada and northeast USA, winters mainly in Central America.
ON PEI: The chestnut-sided warbler breeds on Prince Edward Island and is fairly common in the spring and summer.
CONSERVATION: This warbler actually seems to benefit from timber harvesting, as it prefers second-growth forests. It is not considered at risk at the present time.
SIMILAR SPECIES: Bay-breasted Warbler, Cape May Warbler
REFERENCES: https://www.borealbirds.org/bird/chestnut-sided-warbler
https://www.mba-aom.ca/jsp/toc.jsp (Maritimes Breeding Bird Atlas)
https://identify.whatbird.com/obj/309/_/Chestnut-sided_Warbler.aspx
https://www.allaboutbirds.org/guide/Chestnut-sided_Warbler/id
https://www.audubon.org/field-guide/bird/chestnut-sided-warbler
American Bird Conservancy (Chestnut-sided Warbler)

Chestnut-sided Warbler - Anderson Road, PEI - May 19, 2018 - © Roberta Palmer
Chestnut-sided Warbler, male – Anderson Road, PEI – May 19, 2018 – Roberta Palmer
Chestnut-sided warbler, female - Réserve naturelle des Marais du Nord, QC - photo by Céphas
Chestnut-sided warbler, female – Réserve naturelle des Marais du Nord, QC – photo by Céphas

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