Cases of word usage

1) the hard, horny mouth of a bird (beak)

2) a two-footed animal, e.g. a man or a bird (biped)

3) an insect, bird etc that creeps (creeper)

4) a kind of European bird whose call is like its name (cuckoo)

5) a (real or imitation) bird used to attract others so that they can be caught (decoy)

6) a kind of large strong bird of prey (eagle)

7) an oval object with a shell, as produced by a bird (egg)

8) the heart, liver, gizzard etc of a goose, hen etc taken out before the bird is cooked (giblets)

9) (a kind of) bird with feathered feet, shot for food; (to make) a complaint (grouse)

10) a kind of strong, swift, bird of prey; a person who favours war or the use of military force (hawk)