10/31/2026
Happy Halloween from all of us at Western Bird Banding Association! If you’re a bird ba**er, you probably know just how scary this bird and its close relatives can be when in the hand…
This After Second Year (DCA) male Black-headed Grosbeak (Pheucticus melanocephalus) was banded by Rio Grande Bird Research Inc. this past summer during the MAPS banding season. As you can probably tell by the name grosbeak and their appearance, this species has a thick and scary beak that can do some damage! These extremely strong beaks are designed to crush very hard seeds which make up a large part of their diet. That beak is also a great way to defend yourself!
Black-headed Grosbeaks (BHGRs) are found throughout the western half of the US, central Mexico, and small parts of southwestern Canada. They are the western counterpart to the Rose-breasted Grosbeak who is found in the eastern half of North America, and the two species are known to hybridize where their ranges overlap in the central US.
Large numbers of these birds winter in the mountains of central Mexico including the areas where Monarch butterflies overwinter. BHGRs are one of the few animal species able to deal with the toxins found within the bodies of Monarchs but can only eat them in 8 day cycles to allow their bodies to neutralize the toxins.
What birds remind you of Halloween?? Photo taken by Jason Kitting.
All banding is being conducted under a federally authorized Bird Banding Permit issued by the U.S. Geological Survey’s BBL.