3. worry, trouble, burden, distress, haunt, hang over, oppress, weigh down, weigh heavily This was the question that preyed on his mind.Birds of prey
accipiter, bald eagle, barn owl, bateleur eagle, boobook, brown owl, buzzard, caracara, condor, Cooper's hawk, duck hawk, eagle, eagle-hawk
or wedge-tailed eagle, falcon, falconet, golden eagle, goshawk, gyrfalcon
or gerfalcon, harrier, hawk, hawk owl, hobby, honey buzzard, hoot owl, horned owl, kestrel, kite, lammergeier, lammergeyer, bearded vulture,
or (archaic) ossifrage, lanner, little owl, long-eared owl, merlin, Montagu's harrier, mopoke
or (N.Z.) ruru, osprey, fish eagle,
or (archaic) ossifrage, owl, peregrine falcon, red kite
or (archaic) gled(e), rough-legged buzzard, saker, screech owl, sea eagle, erne,
or ern, secretary bird, snowy owl, sparrowhawk, tawny owl, turkey buzzard
or vulture, vulture