Raptor Fun Facts: Ultraviolet Sensors

21 June 2017
Sponsored by   Did you know that some species of raptor can see ultraviolet light?  This is helpful because small mammals such as voles and mice mark their tracks with urine, and urine is a substance that reflects ultraviolet light.  Because of this, some raptors are able to see the…

Raptor Fun Facts: Bald Eagle's Bill

15 February 2017
Sponsored by Have you ever noticed that a Bald Eagle's bill is much larger than a Golden Eagle's?  The reason for this is likely quite obvious.  Fish, of course, is the main diet of a Bald Eagle, and salmon is a part of that fish diet--a significant part in the…

Where Do Canadian Ferruginous Hawks Winter?

14 February 2017
Blog by Jesse Watson In early October we blogged about the Ferruginous Hawk project one of our biologists has been involved with in southern Canada.  At that time, we posted a map showing where Ferruginous Hawks tracked from their breeding ranges in Alberta and Saskatchewan were located along their fall migration…

Raptor Road Trip: Tracking Birds of Prey Across the American West

10 February 2017
Three friends hit the road to follow hawks and golden eagles on their fall migration, and to collect valuable data that will help scientists understand the birds' ancient journeys. ...read the full National Geographic article Here By Charles Post PUBLISHED February 9, 2017 With outstretched talons, a lone golden eagle…

Combined Count Data Reveals Shifts in Hawks’ Migratory Behavior

09 February 2017
Bird species’ distributions and migratory behavior are shifting in response to changes in climate and land-use, but surveys that focus on a particular season can cause scientists to miss trends in the bigger picture. A new study from The Condor: Ornithological Applications tackles this problem by combining Red-tailed Hawk counts…

Winter's for the birds!

27 January 2017
Our friends at Outdoor Project recently launched their 52 Week Adventure Challenge.  They have put together a list of 52 geological features and adventure themes to keep you inspired all year. Week 5 is for the birds, and we wrote this blog post to inspire you to get outside this week…

GPS Tracking of Rough-legged Hawks

16 December 2016
Rough-legged Hawks spend the winter throughout southern Canada and the United States, and yet scientists still know surprisingly little about the basic movement patterns of this relatively common arctic-breeding raptor. One reason we know so little is that Rough-legged Hawks are thought to be “broad front” migrants, meaning they are…

Do you know about our new Forest Owl study?

23 November 2016
by Dave Oleyar, HawkWatch International Senior Scientist As cold temperatures finally begin to arrive, I’m entering data and thinking back to this summer and the inaugural season of our Forest Owl Study in partnership with the Earthwatch Institute, and long-time collaborator and friend, Markus Mika, of the University of Wisconsin…

Red-tailed Hawk Patagial Marks

05 November 2016
Do all Red-tailed Hawks show dark patagials? Well, yes, but… Dark patagials (or "patagial bars") is a well-known ID trait for light-morph Red-tailed Hawks, but some show very faint patagials, appearing as if they lack dark "bars" altogether. This is more common with juvenile Red-tails than adults, and with Eastern…

Austwell-Tivoli ISD Students Experience Hawk Watch

03 November 2016
Text and photos by Brigid Berger, Texas Master Naturalist, Mid-Coast Chapter “Cooper’s Hawk!” “Kingfisher!” “Double-breasted Hummingbird!” As the kids got back on the bus to head home, I asked them to name a bird they had seen today. While not all of them were completely accurate in their identification skills,…