In winter, when the food and water supply stored in their nest is exhausted, some of the ants called workers are sent to find new sources and replenish the colonyâs supplies. The pests feed on: 1  pet food, 2  live and dead insects, 3  and almost anything that people eat.
Anna's Hummingbirds in coastal California, Oregon, Washington, and Vancouver Island do not migrate at all, and a year-round feeder usually means year-round birds. Farther inland, Anna's may move seasonally to make best use of local resources; these movements may be more attuned to elevation than to latitude.
hummingbird migration-ruby-throated. Migration of the ruby-throated hummingbird has been an inspiration and a wonder and a scientific puzzle for years. Shrimp fishermen and workmen on oil rigs reported that they found ruby-throated hummingbirds far out in the Gulf of Mexico (100 and 200 miles) where they did not belong.nother study of ruby-throated hummingbirds has reported that when they gain 2 grams of fat, they have enough fuel to cross 600 miles of water without tailwinds. 8 So they eat in excess and wait for cold fronts to carry them on their way.