OCT., 1900.] BIRDS OF THE YUKON REGION. 09 



on inner wel)s of outer primaries. Osgood took a typical young of 

 cinnmnoineufi and saw another on an island near Sixty -Mile Creek 

 August 1. 



60. Symphemia semipalmata inornata. Western Willet. 



While in a meadow a short distance ])aok from the southeast end of 

 Lake Marsh July 2 I heard a willet whistle several times its unmis- 

 takable 'pill- willet,' but failed to see the bird. 



Gl. Heteractitis incanus. Wandering Tattler. 



Osgood took an adult at Skagway May 31. I shot a .young bird 

 from a flock of three at St. Michael September 1, saw one on Whale 

 Island September 8, and secured two at Unalaska October 5. 



The irides of the adult were vandyke brown; bill, black, base of 

 mandible brownish; tarsi and toes, l)rownish ocher; nails, black. In 

 the young, the bill changed from Ijlack to sage green in basal third of 

 mandible, and to greenish olive at base of maxilla; tarsi and toes, 

 dull gallstone yellow, greenish at joints. 



62. Actitis macularia. Spotted Sandpiper. 



1 saw one at Skagway June 3, and Osgood one at Glacier June 8. 

 This is preeminently the shore bird of the Yukon Basin; we saw two 

 at Bennett June 18, and until we reached Circle, August 15, hardly 

 a da}^ passed without our seeing many running along the shore, or 

 skimming over the river. They were especially abundant between 

 White Horse Rapids and Lake Lebarge. After the 1st of August 

 most of the spotted sandpipers seen seemed to be traveling upstream 

 in small flocks. We saw no adults after August -1. 



The first set of eggs was found at Caribou Crossing June 27; the 

 last at the Tatchun River Juh' 23. The flrst young noticed were in a 

 nest containing three young and one pipped egg found on Lake Marsh 

 July 7. Both sexes were incubating. Nests were close to the shore, 

 and also on small rocky islands in the lakes. 



63. Numenius hudsonicus. Hudsonian Curlew. 



I secured one from a flock of four curlews on the marshes of Chilkat 

 Inlet, and Osgood found a dead bird in the woods at Haines, June 1. 

 Three young were brought to the steamer by an Eskimo at the Aphoon 

 mouth August 28. I saw one at St. Michael September 2, and, I think, 

 another September 14. 



Adult: Irides, vandyke brown; bill and nails, black; tarsi and toes 

 cinereous. Young (Massachusetts specimen): Irides, raw umber; 

 maxilla, black; mandible, clove brown, blackish at tip, vinaceous 

 toward base; tarsi and toes, olive gray; nails, black. 



