Water

Carson waterproof feathers.JPG

With her confidence growing, Carson has been taking each new step of our training like water off a duck’s back.

Like ducks, all birds have to work to waterproof their feathers. By rubbing their head and beak in an oil gland at the base of the tail, birds spread the water-repelling oil to all of their feathers while preening. Drops of rain will bead on the surface of the feather, rather than sink in, and roll right off. Waterproofing keeps the fluffy down feathers dry underneath and maintains their insulative qualities. The bird stays warm and dry even through heavy showers.

From beak trimming to meeting groups of visitors at the Museum, Carson doesn’t seem to mind. She is still eager for training even after these mild stressors. Just like waterproofing takes some effort to maintain, building our relationship and Carson’s confidence in new situations took time. But we are seeing the rewards now as she takes everything in stride, like water off a hawk’s back.

Advertisements

Time for a Trim

Each time I brought Carson the Red-tailed Hawk outside last week, I had to cringe a little. Her beak was overgrown and not only did it look bad, it was also getting in her way. It was so long that a piece of meat occasionally got speared by the hook and she had trouble getting it off. It was time for a trim.

Her last trim, or coping, was 10 months ago when she visited The Raptor Center last fall. While Aldo the American Kestrel’s beak grows so fast he needs a trim every 2 months, Carson’s beak grows slowly and requires less maintenance.

Coping a hawk beak feels like a piece of cake compared to a kestrel. Kestrels, as falcons, have specialized notches in their beaks that need to be shaped. Hawks conveniently have a smooth-shaped beak and I only had to concentrate on shortening the hook. We finished quickly and brought her back to her mew to enjoy half of a rat with her smooth, shortened beak.

Carson beak.jpg

Rouse

carson rouse.jpg

It is officially one year since I rolled into Cable and presented a raptor program with Aldo and Carson on my first day of work at the Museum. It has been amazing getting to know these birds more closely and see their progress over the last year. Carson the Red-tailed Hawk has come the farthest her training. A year ago, she ran away from me when I got too close with the glove. Today she ran toward me before I was even ready to start. She stepped on my glove (and got a chunk of rat for her effort) and we went outside to get weighed on the scale and enjoy the sun. A chipmunk rummaging through the garden piqued her interest. Every time I moved, she craned her neck to keep her eye on the little rodent, so we stayed outside to take advantage of the free entertainment. Naturalist Intern Bethany even snapped this photo as Carson roused and shook out her feathers to get comfortable. It took time – and a lot of quail, mouse, and rat tidbits – to get to this point, but seeing Carson rouse on glove is all the reward I need to know that the effort was well worth it.

Carson’s Molt

P1190351.JPG

All of the birds have started their annual molt in the last few weeks. With thousands of feathers to replace, the process can take months. If all the old feathers fell off at the same time, the bird would be quite helpless! Instead, wing and tail flight feathers are replaced in a specific order so the bird only misses one or two feathers at a time and can still fly.

I found a beautiful red tail feather that had been shed in Carson’s mew last week. This week, I noticed she had an uneven tail: the replacement feather is starting to grow in! The short feather you see in the photo is her first new tail feather. One by one, she will replace each feather in the next few weeks.

P1190353.JPG
A close-up of Carson’s new tail feather growing in.

Sticks

IMG_5058.JPG
Carson holding on to one of her sticks.

Even through the ice and snow last week, birds can sense that it’s spring. There seem to be more osprey than we’ve seen in recent years in the Cable area and they are busy nesting. Over the course of two or three days I watched one pair’s nest-building progress on my daily commute. What started as a few tree branches dangling precariously from a utility pole quickly became a sturdy mass of sticks. It is similar in structure to bald eagle and red-tailed hawk nests. In red-tailed hawks, the male and female work together to collect sticks and weave them together into a nest lined with strips of bark, fresh plants, or dried vegetation.

Our red-tailed hawk, Carson, has also sensed the springtime urge to build. Noticing an uptick in her activity this spring, I decided to test her interest in nest building. I placed 5 sticks around her mew one night and wondered if she would touch them. I was surprised to see each stick had moved the next morning. Since then, she moves the sticks around nearly every day, and occasionally she gathers them on top of her platform as if waiting for more sticks to appear so she can make a decent-sized nest.

Bath time

Carson in water bath2.jpg

Last Saturday was finally warm enough for the birds to take a bath outside. When I gave Carson a pan of water, she hopped in as soon as I left the mew. I watched from the door for a moment, but she just looked back at me. I went back to my office to give her some privacy. An hour later I returned to check on her, expecting to see a dripping hawk after splashing and playing in the water. Instead I found Carson still standing in her water, completely dry except for her feet.

I continued to check on her throughout the morning and nothing changed. She simply stood in the water pan for three hours straight. I guess she decided that all she needed was a nice foot soak!

Enrichment

Carson phone book enrichment.jpg

To maintain healthy birds in captivity, we encourage natural behaviors to keep their minds and bodies active. Most of a wild raptor’s day is spent simply sitting on a perch and watching their surroundings. That is easy to replicate in the mews: our birds sit and watch the Museum’s backyard daily.

For the rest of their time, we place new objects in the mew for them to look at or toys to play with. Carson recently received a phone book that Jayme (Living Collections Assistant) carefully folded like a fan. After a few weeks, Carson had ripped up nearly half of the book! Shredding is a natural behavior that wild raptors do when they catch a large meal, like a rabbit. This kind of enrichment keeps Carson busy and gives her an opportunity to rip and tear something for fun.