Winter Home Confirmed?!

Coley has not moved much since he arrived in the Cienaga Pajaral (Bird Marsh) in the Department of Magdalena in northern Colombia on September 26th.  He has made a few short flights away from the Bird Marsh area, but for the most part he has confined his activity to a very small section of the marsh, less than 2 miles across. We’ll be keeping an eye on his movement – or lack thereof. He may just be acclimating and hunting in a very small area, or the GPS pack could be having some technological issues, but normally we’d expect more data coming in and more movement. Bear with us as we sort it all out.

Now that he has been there for over 17 days, I am almost convinced that this will be his winter home.  I cannot think of a better place for an Osprey to winter.  If you zoom in on the map and click the “Sat” or “Earth” button, you can see that the area appears to be relatively uninhabited, and thus generally safe from hunters and other dangers posed by people.  There is a small village of houseboats in the marsh, but overall it seems that he has picked a quiet place for a winter retreat!

This photo of the large adjacent marsh, Ciénaga Grande de Santa Marta, gives an idea of what Coley might be seeing these days:

Source photo: Augusto Sisa

Next report to follow in about 10 days, unless, of course, Coley leaves Bird Marsh for another destination.

Thanks again to all of you for your input and support.

Coley and Dr. Bob Signing off

Bull’s eyes = Osprey’s location every hour.
Lines = Sequence of locations in time (not the actual flight path)

Click the Sat(ellite), Ter(rain) or Earth buttons on the map for alternate views. The Earth view requires you to have the free Google Earth software on your computer. For a larger map, go to Google Maps or download the KML file to view in your copy of Google Earth.


  1. Just read todays update. Sounds promising. He’s still young
    and maybe a little intimidated. Look forward to next info.

  2. Thanks for all this great info: I am a new resident on a Branford, CT marsh (as of June) and enjoyed the ospreys in the nests outside my house tremendously. Question: it appears One osprey has not left the area…does this ever happen? Does he have any chance of making it through a winter here?

    • Sometimes young Ospreys will hang around their nest area long into the fall. No worries, it will head south as food becomes limited. However, it could be a late migrating adult or even a young from some other area.

      If this bird does not leave, there is little chance that it will survive through the entire winter in Connecticut as fish will be tough to find. Sad when that happens but that is natural selection at work! Let’s hope it heads south soon with the last of the lingering schooly Striped Bass.

  3. Thrilled that Coley made it successfully to his winter home. I’m looking forward to the updates on his escapades over the upcoming weeks.

  4. This is so fascinating. Thank you for all the updates, Dr. Bob. I am delighted Coley chose a good winter roost and look forward to further information.

  5. This is so interesting. I never knew that bird’s could fly in the dark. I always thought they could not see and they would panic. To fly so far and so fast amazing to me. Thank you so much for sharing. I am so glad that Coley may his destination safely.

  6. This project highlights the importance of global conservation and just how precarious life is for animals, especially migrating wildlife. We pose the greatest threats, but it is also in our power to offer the greatest protections. Cheers for Coley. I can’t wait for the next update!

  7. We also love our Ospreys at the Salt River in Tempe, Arizona!

  8. Such an amazing journey. Thanks so much for letting us share this wonderment.
    It is always humbling to see into the secrets of the natural world.