(of bird feet) having the first and fourth toes directed backward the second and third forward
zygodactyl详细解释
zy.go.dac.tyl adj.（形容词）Having two toes projecting forward and two projecting backward, as certain climbing birds.对趾的：有两个脚趾向前突和两个脚趾向后突，象某些攀爬鸟n.（名词）A zygodactyl bird, such as a parrot.对趾鸟，如鹦鹉
