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Over the weekend, Neil Paprocki caught and outfitted this light morph harlani with a GPS/GSM transmitter in Northern Idaho. The members of our group decided that this harlani, the first bird to be tagged for the winter 2021/2022 field season, is to be named “Liggy” in honor of our mentor and friend Jerry Liguori. “Liggy”Continue reading ““Liggy” the light morph harlani”

In October, Bryce had the privilege of visiting the Cedar Grove Ornithological Research Station (CGORS), a long-term fall migration monitoring station along the shore of Lake Michigan in central Wisconsin. Each year, strong winds from the west cause a large number of migrants to build up along the shore as they move south. CGORS isContinue reading “Four birds join the project, in collaboration with Cedar Grove Ornithological Research Station”

As we approach mid-November there is a lot to report on as our Michigan Red-tailed Hawks head towards their wintering grounds. So far, we have gotten data from 9 of the 11, hopefully we hear from the others. Here is a quick update on 7 of our birds we have heard from. First up areContinue reading “Michigan to Kentucky: Movement Update”

Most of our birds are back on the grid as they finish their fall migration. As a result, we have breeding locations to share – perhaps the most exciting of which are the dark putative ‘non-harlani‘ birds. Below are the breeding locations for the remainder of our tagged harlani, as well as individuals we taggedContinue reading “Dark morphs tagged in Kansas breed in sympatry with harlani”

Hi, everyone! My name is Allie, a graduate student at the University of Minnesota Duluth. Here in Duluth, fall migration is incredible, featuring high numbers of Red-tailed Hawks showcasing different plumages. Dark morph Red-tailed Hawks migrating and wintering in Minnesota are especially beloved by the raptor community. Why is this? Well, dark morph Red-tailed HawksContinue reading “Dark Morphs in Minnesota”

After deploying all of our Michigan units this past April we have been patiently waiting for our birds to check back in and provide us with breeding locations. Luckily, fall migration has begun for adult Red-tails here in the East, and because of that we now have information on 2 more of our birds. NormallyContinue reading “Great Lakes Movement”

The first three birds to check in after a summer off-grid are three of our harlani that we tagged last winter in Kansas and Nebraska. Fortunately, all three transmitters worked great and we now have nesting locations and some fine scale movement data! Here are their tracks to date: There are still a lot ofContinue reading “Fall migration has started, as told by our harlani moving south!”

Here is a more detailed look at the success of our sampling effort in some of the states Bryce visited this summer.

From Bryce: This photo sums up my summer in a very simple way. 40 birds – the result of countless hours, over 20,000 miles of driving to trap in 7 states, and sample 5 of the 14 recognized Red-tailed Hawk subspecies. When I set out from New York in late April, I had no ideaContinue reading “Bryce’s 2021 breeding captures”