eagle
鷲 centers on a large bird of prey: the eagle.
鷲 combines 就 (which likely contributes the sound) with 鳥 (bird), forming a phono-semantic compound for 'eagle'.
The top 就 suggests a settled, imposing presence, and the bottom 鳥 is a bird. Picture an eagle perched high and still, surveying its domain.
For シュウ, imagine an eagle swooping down with a sharp 'shoo!' sound as it dives: shoo -> シュウ.
eagle (Accipitridae family)
grabbing hold; eagle grip; tight hold
Steller's sea eagle (Haliaeetus pelagicus)
golden eagle (Aquila chrysaetos)
Old World vulture
white-tailed eagle (Haliaeetus albicilla)
great horned owl (Bubo virginianus)
Haast's eagle (Harpagornis moorei); Harpagornis eagle
crested serpent eagle (Spilornis cheela)
double-headed eagle (symbol of heraldry)
greater spotted eagle (Aquila clanga)
griffon vulture (Gyps fulvus)
bald eagle (Haliaeetus leucocephalus)
eastern imperial eagle (Aquila heliaca)
secretarybird (Sagittarius serpentarius); secretary bird
bearded vulture (Gypaetus barbatus); lammergeier
The Eagle Has Landed (1975 novel by Jack Higgins)
Aquila (constellation); the Eagle
Eurasian eagle owl (Bubo bubo)
griffon; gryphon