CHESTNUT-SIDED WARBLER

CHESTNUT-SIDED WARBLER (Setophaga pensylvanica)

The Chestnut-sided warbler is around 12 cm (5 in.) long. The 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.

Warblers are thus called thanks to their generally melodious songs. The Latin genus name ‘setophaga’ means ‘eating moths’, and the species name ‘pensylvanica’ likely refers to the location where the first specimen was found.

The habitat of the chestnut-sided warbler includes scrubland along fields and clearings. It is a species that actually seems to benefit from timber harvesting, as it prefers second-growth forests where it forages for insects and other invertebrates on leaves.

The chestnut-sided warbler breeds on PEI and is fairly common in the spring and summer. Its breeding range includes southeast Canada and northeast USA, and it migrates mainly to Central America.

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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