Complex sentence: They are generally sedentary, a single bird, a pair, or a family group occupying a stretch of habitat on a more or less permanent basis, however some individuals appear to travel considerable distances, and flocks will sometimes congregate in food-rich areas.
Split into simpler sentences: They are generally sedentary, with a single bird, a pair, or a family group occupying a stretch of habitat on a more or less permanent basis. However some individuals appear to travel considerable distances, and flocks will sometimes congregate in food-rich areas.