It’s been a while since I’ve posted because I’ve been so busy lately! On either May 22nd or early May 23rd, the Black-capped Chickadees in my nest box fledged. There were either 2 or 3 nestlings based on my observations on May 22nd.
On the 22nd, I watched both parents feed at the entry hole every 5 minutes or so and often fly off with fecal packets. Between parental visits, one nestling, noticeable as a nestling by its fleshy gape, kept sticking its head out of the hole of the nest box and looking around as if it was ready to jump out at any minute.
When I checked the next morning, the birds were gone. Next year I’ll try and rig up the nest box camera to see if I can’t capture the whole show. Since the box I’m using is pretty small, I may need to develop a false roof to attach the camera.
The Northern Flicker family appears to be doing well. The first 3 chicks hatched out on June 1, the 4th on June 2, and the 5th on June 3. So far the 6th egg hasn’t hatched and I suspect it won’t since it’s been 14 days since it was laid and the parents don’t even seem to be incubating it much at all anymore. It’s probably a good thing, since it would be at a serious disadvantage against its much bigger siblings in trying to get food.
In watching these chicks I’ve come to the realization that song birds grow fast! At 6 days old, the 3 oldest chicks are easy 3 times the size they were when they hatched out. Of course, they have to grow fast since many birds migrate and they only have a short amount of time to put on weight and build strong enough feathers to help them on their journey. While Northern Flickers aren’t migratory, at least not where I live, they also have a short window to mature and become independent before the winter months.
Mom and dad have been sharing feeding and brooding duties over the last week. While it’s difficult to tell what’s on the menu, a Northern Flicker’s diet is primarily made up of ants (that’s one good reason to leave that ant colony in your backyard alone instead of dousing it with toxic chemicals). As soon as mom or dad’s shadow appears at the nestbox’s entry hole, the chicks perk up and start loudly chittering. It’s been said that this chittering sound is meant to imitate the sound of a hive of bees in order to deter predators from raiding the cavity.
One interesting thing I had never seen before setting up this bird cam occurs shortly after the chicks have been fed. The parent pokes or nips at the chicks, especially their hindquarters. It took me a bit to realize that this nipping was meant to prod the chicks to defecate. Because Northern Flickers and other cavity nesters live in an enclosed space and the chicks can’t easily relieve themselves over the side of the nest, the cavity would soon be overwhelmed by feces if there wasn’t a way to dispose of them. Therefore, the parents will solicit the chicks’ feces and then either consume the fecal packet or fly it away from the nest.
That’s one way of nipping the cleanliness problem in the butt…er, bud!
On the ground info about Colorado nature and wildlife.