brooks: birds from east Siberia and arctic Alaska. 385 



over the back as a gull does before folding them. Then with the 

 forearms perpendicular, the primaries would be slowly raised and 

 lowered like a pump handle, generally lowered to right angles with the 

 forearms, sometimes lower. Not a sound was uttered. 



Two nests were found, each containing four eggs and about one 

 quarter incubated on June 12 and 14, 1914. Murdoch found them 

 nesting rather later than other waders at Point Barrow, but my ex- 

 perience at Demarcation Point was quite the opposite, for here they 

 were the first to breed. A female taken June 2, had a fully formed 

 and colored egg about ready to lay. Both of the above nests were 

 on dry, well-drained tundra near the bases of knolls. The nests 

 were like the other sandpipers, and lined with dry willow leaves, 

 but the cavities were less deep than those of the Semipalmated 

 Sandpiper. 



The female was on one nest and the male on the other. The former 

 left the nest when I was some distance away and flying directly 

 towards me alighted within a few feet. While I was at the nest she 

 walked hurriedly about close by constantly uttering a plaintive " weet- 

 weet-weet" always repeated three times. Occasionally she would 

 take a short flight about me and utter a note very similar to the 

 rattling call of the Pectoral Sandpiper. 



The male when disturbed acted quite differently. He sat closer 

 and on leaving the nest showed the greatest concern, dragging a 

 "broken" wing in the most distressing manner. 



In neither case was the mate about as frequently occurs with the 

 Semipalmated Sandpiper. 



Baird's Sandpipers were found common by Mr. Dixon during the 

 first part of August 1914, at Herschel Island. A few were taken at 

 Collinson Point, and at the mouth of the Hula-Hula River August 9 

 and 11, 1913. One adult male was taken at the head of Providence 

 Bay, Siberia on June 11, 1913. 



Pisobia fuscicollis (Vieillot). 



WHITE-RUMPED SANDPIPER. 



Only two White-rumped Sandpipers were noted during the expedi- 

 tion. A female associating with a small flock of Semipalmated Sand- 

 pipers was taken June 5, 1914, at Demarcation Point. On June 7, 

 a male was shot. It also was with several Semipalmated Sandpipers. 



