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1.
Black-capped chickadees are perching birds.
2.
Male Red-tailed Hawks are larger than females.
All female birds of prey are usually larger than males. This appears best when the male and female are next to each other.
3.
Bufflehead ducks nest in trees in forests in the summer.
4.
Mute Swans are always mute.
Mute Swans sometimes make sounds.
5.
Crows can recognize human faces.
6.
Mourning Dove coos have been mistaken for owl hoots.
The cooing of Mourning Doves sounds like "hoooo-hoo-hoo-hoo" so it is easily mistaken for owl hoots.
7.
Screech-owls are named for their screeching.
Screech-owls actually do not screech.
8.
A parrot species' males and females are so different that people once thought they were different species.
9.
The tufts that a Great Horned Owl has on its head are its ears.
The tufts are just for show. Owl ears are not visible.
10.
Egrets and herons are not related.
Egrets are herons.