Elytra (shell) from a large Pasimachus ground beetle found with pellets near an American Kestrel feeding post.
This beetle shell was found near (a few feet away from) an American Kestrel feeding post in Lakehurst, Ocean Co., NJ (taken June 22nd). I moved it over for composition purposes, but I'm pretty sure the kestrel ate it (note the pellets with insect bits in them). Also it has a hole in it that I could picture a kestrel's beak tip going into. Below is (I think) the same beetle species found dead about 50 feet away from the post. According to bugguide.net, it's in the genus Pasimachus, in the family Carabidae - the ground beetles. This adds weight to my theory that summer kestrels are as much beetle-hawks as they are vole-hawks, or sparrow-hawks. And I guess they are grasshopper-hawks, too, as I found a large grasshopper wing nearby, as well. See previous post on beetle-hawks here.
Thanks to bugguide.net I know that these big monsters are in the genus Pasimachus (Family Carabidae, the ground beetles), and that it is a flightless species, having wing shells ("elytra") that are fused in the middle.
Showing posts with label American kestrel. Show all posts
Showing posts with label American kestrel. Show all posts
Tuesday, July 5, 2011
Beetle-hawks 2
Tuesday, May 3, 2011
Beetle-hawks
A sparrow-hawk? No, a beetle-hawk.
Two pellets (a.k.a. puke) freshly coughed up by American kestrels (they were still moist...note the ant). Also part of a dismembered iridescent beetle (a scarab?). All were found beneath favored kestrel feeding posts in an Ocean County (NJ) grassland. Almost all the kestrel pellets I've found so far this April have pieces of beetle shells in them. I think there are lots crawling out of the soft sandy soil - maybe as hibernating adults, or maybe freshly-metamorphosed from wriggling, dung-fattened grubs. Some they are definitely catching on the ground, but I wonder if some of the aerial insect hawking I see them doing (way high up) is after these big and tasty slow-flying beasts. The pellets are about 1 inch long, for scale.
Two pellets (a.k.a. puke) freshly coughed up by American kestrels (they were still moist...note the ant). Also part of a dismembered iridescent beetle (a scarab?). All were found beneath favored kestrel feeding posts in an Ocean County (NJ) grassland. Almost all the kestrel pellets I've found so far this April have pieces of beetle shells in them. I think there are lots crawling out of the soft sandy soil - maybe as hibernating adults, or maybe freshly-metamorphosed from wriggling, dung-fattened grubs. Some they are definitely catching on the ground, but I wonder if some of the aerial insect hawking I see them doing (way high up) is after these big and tasty slow-flying beasts. The pellets are about 1 inch long, for scale.
Labels:
American kestrel,
beetles,
bird food,
insects,
pellet
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