It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
A Few Facts About Robin Migration
* The vast majority of robins do move south in the winter, but some stick around — and move around more northern locations.
* Robins migrate more in response to food than temperature.
* Fruit is the robin's winter food source. In spring, as the ground thaws (when average temperatures reach about 37 degrees), they switch to earthworms and insects.