Humbug, 3 letters
Aerie newcomer, 4 letters
Baby bird, 4 letters
Fledgling bird, 4 letters
Nestling hawk, 4 letters
Unfledged bird, 4 letters
Unfledged hawk, 4 letters
Young falcon, 4 letters
Young hawk, 4 letters
An unfledged or nestling hawk, 4 letters
Nesting hawks, 6 letters