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Crex Meadows ... Birds on the Meadows ... Chestnut-sided Warbler
The Chestnut-sided Warbler
Dendroica pensylvanica
The Chestnut-sided Warbler (Dendroica pensylvanica) is a common Crex Meadows Warbler. This warbler nests locally in Crex Meadows and is often seen in many locations.
The Chestnut-sided Warbler is an insect eater during most of the year. It will eat some berries during the winter months in its Central and northern South American wintering grounds.
These Chestnut-sided warblers were migrating through Crex Meadows on May 21, 2008.
The colors of the Chestnut-sided warbler are unique among the warblers. The wingbars are present in both male and females, during all plumage stages. Chestnut-sided warblers do not have the streaking of the Blackpoll warblers during non-breeding plumages.
The Chestnut-sided warblers prefer to nest in low, young deciduous woodland or brush areas, which is usually located in young deciduous woodland or scrub. Cowbirds will lay their eggs in the nests of Chestnut-sided warblers.
After hatching, the young grow rapidly and are ready to fly on around their ninth day. They fledge the nest at around eleven days old and continue to be beg for food for around one month, becoming more independant as this one month mark is reached.
There are slight variations in the coloring on the Chestnut-sided warbler as you can see in these various pictures. One bird does not show a white eye ring and has sharper defined black eye marking. Other birds show variation in the chestnut banding sizes.
The Chestnut-sided warbler numbers increased for a good part of the 20th century, though recently their numbers have dropped some.
Some of this reduction in numbers may be due to increased pressures in their wintering grounds and urban expansion in their summer areas.
All pictures taken May 21, 2008
| Kingdom | Animalia | Animal, animals, animaux |
| Phylum | Chordata | chordates, cordado, cordés |
| Subphylum | Vertebrata | vertebrado, vertebrates, vertébrés |
| Class | Aves | Birds, oiseaux |
| Order | Passeriformes | perching birds |
| Family | Parulidae | Wood-warblers |
| Genus | Dendroica | |
| Species | pensylvanica |