A studio for bird study

Tag: wild

Gyrfalcon Nest Observation

by Bryce W. Robinson

Somewhere between 45-50 days after hatching, young Gyrfalcons take a leap from their nest and fly for the first time. The clip above shows an angsty female preparing herself for that first jump. Her two siblings, both male, had already left the nest. This fact added to her anxiety as they called from outside of the nest.

Last year I put some effort into seeing a Gyrfalcon’s first flight, but was never in the right place at the right time. This year, I’m making another attempt. The clip above – as seen from a tent through our Zeiss Diascope – is as close as I’ve come to seeing a first flight. I spent hours with my field partner Ellen in a tent outside of the eyrie waiting for the bird to make the leap. The clip shows the closest she came. After this intense flapping bout, she sat down and went to sleep. We had to leave before the bird left the nest, but the time spent watching her was worthwhile.

B_Fieldnotes

First hand study is invaluable. We live in an interesting world where technology gives us so much, so fast, so often. We are able to learn at such a high pace, and research is no exception. For instance, I’m gaining insight into multiple nests using motion-sensor cameras. This provides me an in-depth exposure to Gyrfalcon nests at a higher rate than ever before . This is all due to the camera technology. But I’m missing out on a slow pace digestion of first hand observation. I’m missing out on the whole picture. To get the full perspective, and truly see what it is like in the nest, I need to watch them myself.

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While I watched, I took notes on behaviors. I also did a bit of field sketching. Field sketches force you to focus, and digest very small details that can heighten your understanding of your subject, but also enhance your observation skills. Besides all that, it is an enjoyable way to pass the time while the nestlings sleep.

Ellen_observation

Ellen and I took turns watching the nest. We were able to see two prey deliveries during our time watching. A male fledgling returned after one of the prey deliveries, hoping to get part of the meal. The female, however, would not oblige. I most enjoyed watching their behaviors. The birds interacted with one another in an endearing manner. They would pick at each other, as if preening. I wasn’t quite sure if this was curiosity, playful, or truly preening. They would also watch flies buzz around the nest, as if they were about to pounce. You could see the predator engineered mind in the way they followed the flies. They were figuring out what they needed to do to survive.

Male (R) and female (L) Gyrfalcon fledglings. Digiscoped with a Zeiss Diascope 65 T* FL

Male (L) and female (R) Gyrfalcon fledglings. Digiscoped with a Zeiss Diascope 65 T* FL

Although we missed the first flight of the female, we’ll have a few more opportunities to try with other nests. This means more hours behind the scope to watch, and more hours to learn.

To find out more about The Peregrine Fund’s Gyrfalcon Program, visit The Tundra Conservation Network and www.peregrinefund.org

Singing Sagebrush Sparrow

by Bryce W. Robinson


I took this clip the other day in the Sagebrush strewn landscape of southwestern Idaho. I recorded the video by digiscoping using my ZEISS Diascope 65 T* FL. Normally, Sagebrush Sparrows are busy singers and will generally tolerate you in the area so long as you don’t pay them too much attention. But for whatever reason, no matter how far I was the sparrows on this morning were extra timid. On top of that, the wind wasn’t helping. Due to the wind and the distance from the bird, you can’t really hear the singing. To add one more difficulty to getting the song recorded, there was a lone bull nearby that was constantly growling. I didn’t know bulls growl… So, there is room for improvement for recording video of a singing Sagebrush Sparrow.

Anyway, I’m still pleased with the outcome. I do think I need an external, directional microphone for recording singing birds. Digiscoping really caters to sparrows and other passerines that are more flighty, but it doesn’t capture the song well. Still, It’s really nice to have quality glass to help with the effort. I’m really excited to apply the technique to some of Alaska’s more timid birds this summer, such as the singing Arctic Warbler and displaying Bluethroat.

Wild Boise: The Belted Kingfisher

by Bryce W. Robinson

BEKI

Male Belted Kingfisher- Megaceryle alcyon

When I first arrived in Boise, I was impressed by the wild corridor that runs through the middle of the busy western city. Since then, I’ve taken the time to familiarize myself with the areas around the city where I now live. For the remainder of my time here, which is undetermined, I’d like to feature the bird life that this wild corridor, the Boise River, supports. I’ll be featuring species in segments titled “Wild Boise”.

The Boise River travels through the busiest parts of Boise, Idaho. The most raucous of the birds that frequent this city stream is the Belted Kingfisher- Megaceryle alcyon, a seemingly ornery critter that is always voicing its opinion.

These birds are always present around the university where I spend most of my time, and as such are accustomed to people. I recognized the opportunity to study them in the beginning of my time here, but I haven’t sat and watched the birds at length. Today, I decided to take some time and attempt to interact with the kingfisher a bit. It was a great way to start the new year. Next, I’ll be grabbing a tripod and filming their antics. It will be a challenge though, as they are quite an active bird, always switching perches, taking new views of the river where they glean their livelihood.

Stay tuned for the next feature for Wild Boise. I’d like to make these segments weekly, but as a graduate student, that might be a challenging schedule. Time will tell, I suppose.