Chestnut-side Warbler Archives - Window to Wildlife

I birded the Fox River Sanctuary in Waukesha Wisconsin mid-morning today. Two new species at the river today, the Philadelphia and Warbling Vireos. They gave nice views as they both continually foraged through the trees along the river. The warbler action started out a little slow but then picked up with a total of 12 warbler species. Some of the warbler highlights were a 30 second view of a Prothonotary, Blackburnian, Bay-breasted, Northern Parula and Wilson’s. This place just amazes me! Images were taken on May 19, 2014.

Philadelphia Vireo

Binomial name: Vireo phildelphicus

Category: Vireos

Size: 5.25” long, 8” wingspan

Weight: 0.42 oz.

Philadelphia Vireo

Philadelphia Vireo – Looking up!

Warbling Vireo

Prothonotary Warbler

Blackburnian Warbler – Male

Bay-breasted Warbler – Male

Chestnut-sided Warbler – Female

Chestnut-sided Warbler – Female, going for an insect!

I did a short birding run today of 1 hour at the Fox River Sanctuary in Waukesha Wisconsin early this morning. The Chestnut-sided Warbler gave the best views of the 11 warbler species present. Lower numbers of each compared to a couple of days ago. The other warbler species present were Blackburnian, Palm, Northern Parula, Yellow-rumped, Yellow, Common Yellowthroat, Black-and-white, Magnolia, American Redstart and Wilson’s. It was a fun 1 hour with nice blue skies and mild temps of almost 50 at 8:00 am. Images are of males. Images were taken on May 18, 2014.

Chestnut-sided Warbler

Binomial name: Setophaga pensyvanica

Category: Wood-Warblers

Size: 5” long, 7.75” wingspan

Weight: .34 oz.

Habitat: Open young second growth deciduous woodlands and woodland edges.

Diet: Insects and spiders, fruit and seeds occasionally

Nesting: The small cup shaped nest is usually located in the vertical fork of a shrub or vine tangle usually no higher than 2’ off the ground. The nest is of woven construction of weed and plant parts along with grasses and bark pieces. 3-5 cream colored with brown speckles are incubated for about 12 days.