John G. Tyler contributes the following:
The avocet is evidently possessed of a very keen sense of hearing. On May 21, 1921, I discovered three or four pairs in an overflowed pasture not far from Fresno. Driving my car up to within about 100 feet of them I allowed my engine to die and sat perfectly motionless. In about 15 minutes the birds had become thoroughly accustomed to my presence and one bird finally took up a position on a small levee, tucked its bill under the feathers of its back, closed its eyes, and after raising the right leg and drawing it up close to the body, stood absolutely motionless and apparently asleep for several minutes. It was very much awake, however, for when I whistled softly through my teeth, making a rather squeaking noise, it immediately straightened up, opened its eyes, and gazed about in apparent astonishment. As I remained motionless the bird soon settled down and in the course of the next few moments I repeated the same experiment always with the same results. So long as one remains seated in the automobile and makes no noticeable movement it is possible to make close observation of these and several other species of shore birds, but the slightest movement or an attempt to get out of the car sends them away in the wildest confusion.
Voice.—The avocet's vocabulary is not so elaborate as it is impressive. The commonest note, heard on the breeding grounds as a note of alarm or protest, is a loud, shrill whistle or yelping scream, which I have recorded in my notes as wheat, wheat, wheat. Others have recorded it as plee-eek, plee-eek, or click, click, click. It is always sharp and vehement, implying anger. I have also heard a softer note, uttered in a conversational tone, like whick, whick, whick, or whuck, whuck, whuck.
Aretas A. Saunders contributes the following notes:
About the nest colony the adults flew closely about my head, calling a short staccato call that sounded like pink, pink, pink. One bird pretended wounded in a different manner from what I have seen it done by other species. The bird sat on the water, dropped its head and neck down to the surface, half spread its wings, also dropping them on the water, and, lying almost still, called oo-oo, oo-oo, oo-oo, over and over, as though suffering great pain. The voice was low and not very loud, and not at all like the pink, pink of the other birds.
Field marks.—The avocet, in its striking color pattern of black and white, could not be mistaken for anything else. A white tail, a black V on a white back, black wings with white secondaries and blue legs are all distinctive marks; the buff head and neck are nuptial adornments; in fall and winter these parts are grayish white. From the stilt it can be distinguished by its much stockier build, the absence of black on head and neck and by blue instead of pink legs.
Game.—Although it is a large, plump bird and would help to fill a game bag, there is no excuse for treating it as a game bird. It is so tame and so foolishly inquisitive that it would offer poor sport and would soon be exterminated. Furthermore its flesh is said to be worthless for the table. But above all, it is such a showy, handsome and interesting bird, that it ought to be preserved for future generations to enjoy. The destruction of its breeding grounds will exterminate it soon enough, as it has already been extirpated from its former range in the Eastern States.
DISTRIBUTION
Range.—North America to northern Central America.