The "hawk" had less resemblance to its counterpart of Earth: it was a bird of prey, but in the tenuous atmosphere it needed a six-foot wingspread to lift its small body.
"Duel on Syrtis"
Poul William Anderson
Apparently considerably larger, because of its wide wingspread.
"Bird-Neighbors"
Blanchan, Neltje
Apparently much larger, because of its long wings and wide wingspread.
"Bird-Neighbors"
Blanchan, Neltje