In 1987, There Were Only 22 Condors Birds) in the Wild

Multiple Choice

In 1987, there were only 22 condors birds) in the wild because of habitat destruction ; all were brought to zoos and breeding centres for captive breeding. In 1991, the first condors were re- introduced into the wild. To determine if the population of wild California condors is increasing, which methods would best be suited to gathering condor population size/density information?

A) dispersal sampling
B) direct counts from boats or planes
C) capture- mark- recapture
D) quadrat sampling