sparrowhawk

Short definition from Wiktionary

Noun

1. 1
   A Eurasian sparrowhawk, Accipiter nisus, a small, short-winged European hawk that preys on smaller birds.
2. 2
   A Eurasian sparrowhawk, Accipiter nisus, a small, short-winged European hawk that preys on smaller birds: A female such bird, a male being a musket.
3. 3
   Any of numerous other relatively small birds of Old World species of Accipiter, that prey on smaller birds or otherwise resemble A. nisus.
4. 4
   Alternative form of sparrow hawk; American kestrel, Falco sparverius, of similar size and habit.