Calidris alpina June 16 Several flight songs were heard. A ground display was seen in which the bird raised one wing vertically and gave the long note. After about 2 seconds the second wing was raised. The bird then flew about 15 ft. to the side of another bird. This display was given immediately after a long note was given by another bird. The birds seen seemed to have been paired but loose flocks of 4-6 birds were observed. June 17 Many Dunlins were observed in the Britton Area. Most of these birds were observed in small flocks of up to about 12 individuals. Flight songs were heard in the afternoon especially. And a wing-up display was seen once. A Dunlin was observed crossing a White-rumped Sandpiper. June 18 Dunlins were observed in small groups of about four along Beach Ridge and in the Barrel Area. They frequently gave aerial displays and one often saw a wing-up when one landed after an aerial display. Some territorial chases were observed. One Dunlin was seen to associate closely with a White-rumped Sandpiper. June 19 Dunlins were observed mostly in pairs scattered about the turfers. Much singing and displaying is evident. June 20 Paired Dunlins observed singing and displaying. June 21 It was difficult to find Dunlins. Finally several were heard displaying. June 22 Dunlins seem more common on the newly exposed ground at Holmes' Marsh. June 23 Dunlins are scattered in pairs at the S end of the Britton Area. June 24 About 11 pairs were observed. Much flight display