Images

Black-throated green warbler at the HJ Andrews Experimental Forest in Oregon.

Black-throated gray warbler at the HJ Andrews Experimental Forest in Oregon.

An adult osprey brings a fish to its nestlings at Poplar Island, Maryland. USGS researchers placed game cameras in some osprey nests to identify the types of fish that Chesapeake Bay ospreys are eating, then tested those fish species for toxic chemicals.

Old growth forest at the HJ Andrews Experimental Forest in Oregon, old growth forests have bigger trees and a more complex understory.

Bradley Compton, Research Associate with the Massachusetts CRU, holding a Blanding's turtle, a threatened species in Massachusetts.

Virginia Cooperative Fish and Wildlife research unit students (L to R) Colleen Olfenbuttel (MS), Johnny Wills (MS), and Sybille Klenzendorf (Ph.D.) weigh and measure a black bear cub at a den site in western Virginia.

Red-shouldered hawk capture. Recently graduated MS student Carlene Henneman working on MN Unit Leader David Anderson’s Red-shouldered hawk project.

Ted Simons, Assistant Leader-NC Unit, Arielle Waldstein, MS Student-NC Unit, and Allan O'Connell-Research Wildlife Biologist-USGS Patuxent Wildlife Research Center, with nine raccoons trapped at Cape Lookout National Seashore as part of a study there to evaluate the consequences of predator removal for endangered species management.

Emerald Lake in the High Sierras of Sequoia National Park. Ph.D. Student Luke Ackerman, Ph.D. Student Jennifer Ramsay, and Oregon-Fish Unit Leader Carl Schreck, sampling blood and tissues from trout and taking whole fish for determination of possible effects of airborne contaminants. 

Katlyn Steinkerchner (undergraduate research technician for PA Coop Unit) is banding a Henslow’s sparrow.

Michael Jones, Ph.D. candidate in the Massachusetts unit, tracking the movements of wood turtles in the Connecticut River Valley of Massachusetts.

Lincoln Parrett, of the Alaska Cooperative Fish and Wildlife Unit, restrains a female caribou as her calf looks on.

Iowa Unit Graduate student Chris Penne listens for signals from carp with surgically implanted radio transmitters in Clear Lake. Chris studied carp aggregation to assist in planning for carp reduction by the DNR.

Nebraska Cooperative Fish and Wildlife Research Unit - Nathan Gosch (right; master's student) utilizes a gastroscope to verify that all stomach contents were recovered from a flathead catfish held by Jeff Stittle (undergraduate).

Research on sika and white-tailed deer on Assateague Island National Seashore is investigating movements and habitat partitioning between these two ungulate species. Photo is of Sonja Christensen (M.S. student in Wildlife and Fisheries Science at Penn State University) with a sika deer.

Tennessee Cooperative Fish and Widlife Research Unit students John Damer and Casey Bergthold sampling elusive brook trout in the Watauga River in east Tennessee. 

Arkansas Unit student Aaron Cushing implanting a transmitter in a rainbow trout.

Florida and North Carolina Unit personnel collaborated on a unique study at Yawkey Wildlife Center in South Carolina using aerial photographs collected by the Florida Unit’s unmanned aircraft system (UAS). L-R: Kelsey Oberneufeman (NC Unit), Adam Watts (FL Unit), Scott Bowman (Univ. of FL), Jaime Collazo (NC Unit), Kyuho Lee (Univ.

The Oklahoma Unit has been studying population expansion and genetics of black bear in southeastern Oklahoma since 2001. Live capture and hair snares have been used to collect samples; from left to right: field technician, JD Davis and M.S. candidates, Angie Brown and Meredith Magnuson.

Graduate Student Alina Niklison Measuring a hummingbird — Montana Wildlife AUL Tom Martin's project in Venezuela.

Virginia unit researchers study seasonal movement, dispersal, and home range of invasive Northern Snakehead Channa argus. Scientists also research growth and reproductive behavior in a newly established population of northern snakehead.