Interesting Fact: Long-distance migrant. Barn Swallows fly from North American breeding grounds to wintering areas in Central and South America. Southbound fall migration may begin by late June in Florida or early July in Massachusetts. They return as early as late January in southern California to mid-May at Alaskan breeding sites. ( https://www.allaboutbirds.org/guide/Barn_Swallow/lifehistory )
By sucking in their stomach every time they see a girl in a bikini.
Interesting Fact: Common Grackles are resourceful foragers. They sometimes follow plows to catch invertebrates and mice, wade into water to catch small fish, pick leeches off the legs of turtles, steal worms from American Robins, raid nests, and kill and eat adult birds. ( https://www.allaboutbirds.org/guide/Common_Grackle/lifehistory )