The Secret Life of Birds

Birds are full of surprises. While transmission line corridors can be a blight in many landscapes, in the Northeastern United States they are providing valuable grassland and shrubland habitat for vulnerable bird species.

Read the US Fish and Wildlife Service Northeast’s blog for more information how utility company rights of way are benefiting birds in Vermont, here.

And how do birds find their way along their migration routes? A study by Cornell Lab of Ornithology and University of Nebraska researchers focused on birds that do a “loop migration,” that is, taking a slightly different route south than north. They found that on the way north, the birds were following the greening of vegetation.

Read the Cornell Lab of O press release announcing the paper here.
Read the abstract in the Proceedings of the Royal Society B here. (Subscription or fee required to read the whole thing.)

Geolocators in The Auk

Auk 4 13 coverGeolocators are a relatively new tool that allows researchers to track the movements of small animals, such as birds.

Instead of sending and receiving a radio signal, geolocators record the angle of sunlight at given hours of the day. You must collect the geolocator unit to retrieve the data. Without the send and receive functions, the unit can be much smaller than other tracking devices. Geolocators have been used even on small songbirds. An algorithm lets you translate the sun angle at a given time into a latitude.

Clearly, it’s a technology with a lot of potential and a lot of limitations. If you are interested in how geolocators can inform your own research, check out the April issue of The Auk, which contains two special sections on geolocator research. The issue’s introductory article is a primer on geolocators, and it’s open access. Read it here.

Geolocators in The Auk

Auk 4 13 coverGeolocators are a relatively new tool that allows researchers to track the movements of small animals, such as birds.

Instead of sending and receiving a radio signal, geolocators record the angle of sunlight at given hours of the day. You must collect the geolocator unit to retrieve the data. Without the send and receive functions, the unit can be much smaller than other tracking devices. Geolocators have been used even on small songbirds. An algorithm lets you translate the sun angle at a given time into a latitude.

Clearly, it’s a technology with a lot of potential and a lot of limitations. If you are interested in how geolocators can inform your own research, check out the April issue of The Auk, which contains two special sections on geolocator research. The issue’s introductory article is a primer on geolocators, and it’s open access. Read it here.