Last summer, I noticed something about the molt between male and female Gyrfalcons. While I was entering nests to install cameras in the early nesting period (mostly during incubation), I noticed that males were behind females in their molt progression. Following my initial observation, I started paying closer attention to each bird. I continue to take notes on this, and wanted to share the molt of a pair from a nest I visited recently.
You can see that the male (photo 1) has just dropped his fifth primary. Falcons generally begin their primary molt at P 4&5 and progress in two directions. The female (photo 2) has dropped her third, fourth, fifth, and sixth primaries. You can see P 4&5 are growing in already.
This illustrates a few simple things in the life of a Gyrfalcon. One, that energetics govern the ability to molt. Two, that male and female Gyrfalcons have different energetic roles and energy budgets during incubation and early brood rearing. They have different roles in the process. These are illustrated by the fact that they differ in the progression of their molt.
It is undeniable, the earth is undergoing rapid change. To properly predict and prepare for the impacts this change will have on the Gyrfalcon, The Peregrine Fund has started a program to study particular aspects of Gyrfalcon biology, and form a conservation program.
I am part of The Peregrine Fund team, charged with developing a long term project to monitor Gyrfalcon populations, and conduct necessary research that will inform conservation biologists, to ensure the future of this powerful bird.
Please consider contributing to the efforts of The Peregrine Fund for a year end donation, and be part of a conservation effort aimed at ensuring the future of the Polar Bear of the birds, the Gyrfalcon. Doing so will not only help in the effort to understand and ensure the future of an arctic animal, but will inevitably help in understanding climate change and its real time implications on the earth as a whole, and in turn, on ourselves.
You can become part of this effort by visiting The Peregrine Fund website, and clicking on the DONATE NOW button on the top right of the page. The Peregrine Fund is a registered non-profit 501-C3, so all donations are tax deductible. In the comments section of the donation form, please specify that you wish your gift to contribute to the Gyrfalcon Project.
In an effort to diversify my funding sources, I have started THE GYRFALCON PROJECT, here on ORNITHOLOGI.COM. I will illustrate and paint, to capture the Gyrfalcon in its emblematic form. All illustrations will be featured on the blog and will be available as originals, along with prints. 50% of proceeds from all sales will be donated to The Peregrine Fund to support the Gyrfalcon Project.
I remember last year, I was searching for eagles on the edge of the salt flats of north western Utah. I had pulled over to glass a mountain top, and found myself watching a perched Golden Eagle, some two kilometers away by my estimate. While I watched the bird, I notice a fast approaching figure headed straight for the large raptor. The figure was in fact the Prairie Falcon, come to conduct its business of bullying the large eagle. The tenacious bastard kept at it for nearly five minutes, until finally the eagle had enough of the dodging, and fled from the persistent falcon pest.
My success with illustrating this bird is fortunate, and gives me the courage to start a project that will be focused on gleaning some much needed extra funding for my work with the worlds largest falcon this summer. Stay tuned as this idea develops and materializes.