P. DeBenedictis 1965 Calidris pusilla 19 June Barrow, Alaska - one was seen flying Ealbych Beach Ridge in the morning and 3-15 pairs were seen near the Voth area in the afternoon. The arrival display was given frequently, consisting of a rapid beat usually low flight up to 20 ft. with the motor-boat given constantly. Two birds (together along the edge of a trough with standing water) were watched for a couple of minutes as the smaller fed in the water and the larger stood on a polygon near by; both gave short (6-10 notes) series of tr-tr-tr--- notes like the flight song, the notes of the smaller bird being deeper. They called antiphonally. After this a third bird, which had been with a 4th in a similar area flew in giving the flight display call, landed and went into a "wing out" display similar in form to C. paudi's and chased the 1st small bird. All these took flight but the larger soon landed and the others went into a prolonged chase involving the aerial display. The "wing out" posture was: [sketch of two birds] Later saw two birds together feeding at the edge of a small puddle; 2 others in a chase nearby, giving the motor-boat call, came to about 10 feet away and the smaller after two birds by the