Hummingbirds are small birds that have the ability to hover in the air. In some areas the main predator of the hummingbird is the
praying mantis. One year, a warm winter led to an extremely high number of the insects, and the birds responded by moving to an
area where there are fewer of the insects. This is an example of
change for change's sake
adapting to a new habitat
adapting to a new climate
D)
adapting to a new food supply