From Iowa Raptor Project
Tonight we banded our 21st Northern Saw-whet Owl of the season, one month to the day after we banded our first. Here it is held by IRP Raptor Research intern Aaron Petrie with volunteer Ben Conrads looking on.
Many people are surprised by the number of owls we’re encountering with such limited effort that we’ve invested. We are finding the lowa River valley at the Macbride Nature Recreation Area to be quite productive. We’re most interested this year in discovering how long their fall migration season lasts. Looks like we will be back out for more cold nights ahead!
they also try to measure their body fat. at least in song birds, they do this by puffing/blowing on the belly feathers.
which has got to be weird. I don’t recall if they stuck a thermometer anywhere. But eh… they also stuffed the birds into old socks. which, and sometimes tried to get lots of pictures of them.
(gram for gram, chickadees are the toughest fighters. Dude drilled out a bit of the ornathologist’s knuckle when the teacher wanted a picture. in all, took a larger chunk of flesh than the jay did.)
Yikes on the biting! I don’t think they’ve forgotten their dino lineage.
I’ll have to look into the belly puffing. I want to see them giving birds raspberries. 😆
I haven’t seen them doing any body fat measurements specifically. I have seen a few things where they compare the weights if they recatch them along their migration. The amount they can burn off in a few days was amazing!
to be fair, the birds were scared shitless and we all knew exactly what was going to happen. the sacrifices made for a decent photo. the chickadee was held propped up by the feet so he basically flopped over and started jackhammering with their tiny beak. the jay just bit down and didn’t let go. (maybe it was a cardinal? he had both coming through.)
commentary on the most foul birds? Geese and swans. Geese are more common but swans are bigger.
This is why we need to remember the “wild” part of wild animals. They live in a different world than the one we picture in our heads, but they aren’t afraid to remind us.
I didn’t get much choice to feed the squirrels along side my bluejay friends, and I had been trying to get them to take the peanuts from my hand for a few months.
One day one did, and it put its claws on my hand when it did. They felt so sharp! At that point we both decided to keep sensible distance as between the claws and nut cracking teeth, I didn’t want usnto have any miscommunication that would result in my being shredded.