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Keywords:Brown-headed Cowbird Molothrus ater, Glacier National Park, Mayfly, Montana, Riparian, Rocky Mountains, Swiftcurrent Lake, adult, begging, bird, breeding season, feeding, fledgling, food, foraging, insect, male, nest parasite, parental care, prey, yellow-rumped warbler Dendroica coronata

Photo Info

Dimensions4800 x 6000

Original file size14.9 MB

Image typeJPEG

Color spaceAdobe RGB (1998)

Date taken5-Aug-17 20:05

Date modified6-Jul-19 11:42

Shooting Conditions

Camera makeNIKON CORPORATION

Camera modelNIKON D810

Focal length600 mm

Focal length (35mm)600 mm

Max lens aperturef/4

Exposure1/320 at f/5.6

FlashFired, compulsory mode, return light detected

Exposure bias0 EV

Exposure modeAuto

Exposure prog.Aperture priority

ISO speedISO 400

Metering modePattern

Digital zoom1x

Yellow-rumped Warbler & Cowbird Chick_JF00969

Run ragged trying to provide for not 1, no not 2, but 3 Brown-headed Cowbird chicks (you can see 1 and part of the 2nd in the background), this female Yellow-rumped Warbler was successfully producing some pretty plump offspring as their surrogate mother.

At least the Mayfly hatch made hunting a little easier.

Location: Glacier National Park, MT