It has frequently been remarked that humming birds are more like insects
than birds in disposition. Some species, on quitting their perch,
perform wide bee-like circles about the tree before shooting away in a
straight line. Their aimless attacks on other species approaching or
passing near them, even on large birds like hawks and pigeons, is a
habit they have in common with many solitary wood-boring bees. They
also, like dragon-flies and other insects, attack each other when they
come together while feeding; and in this case their action strangely
resembles that of a couple of butterflies, as they revolve about each
other and rise vertically to a great height in the air. Again, like
insects, they are undisturbed at the presence of man while feeding, or
even when engaged in building and incubation; and like various solitary
bees, wasps, &c., they frequently come close to a person walking or
standing, to hover suspended in the air within a few inches of his face;
and if then struck at they often, insect-like, return to circle round
his head. All other birds, even those which display the least
versatility, and in districts where man is seldom seen, show as much
caution as curiosity in his presence; they recognize in the upright
unfamiliar form a living being and a possible enemy. Mr. Whiteley, who
observed humming-birds in Peru, says it is an amusing sight to watch the
Lesbia nuna attempting to pass to a distant spot in a straight line
during a high wind, which, acting on the long tail feathers, carries it
quite away from the point aimed at.
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