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 NEW RUFFED GROUSE FROM THE YUKON VALLEY 167 July, 1916 MEASUREMENTS IN MILLIMETERS OF ELEVEN SPECIMENS OF Bonasa #mbellu yukoneni$ NO. 4509 4505 4508 4511 4512 4513 4515' 4514 4510 4507 4506 Sex Locality Date Wing Tail Tarsus Culmen  Forty-mile? Y.T. Oct. 18, 1899 185 132 45.5 16.2  ..... Nov. 5, " 190 136 45.2 16.2  .... Oct. 18, " 188 151 44.0 15.7  .... Nov. 15, " 188 156 46.4 17.2  .... Oct. 30, " 192 150 47.1 16.0  .... Oct. 12, " '192 154 46.3  .... Nov. 5, '" 195 155 48.3 17.1  Russian Mission, Alaska Oct. 11, 1894 188 164 46.6 16.3 .' Fort Yukon, Alaska Sept. 24, 1895 178 149 42.0 15.9  .......... ' 182 138 41.9 14.4  (?) Yukon River (Alaska?) 192 156 44.3 16.7 Berkeley, California, June 18, 1916. MIGRATION AND FIELD NOTES FROM FRESNO COUNTY, CALIFORNIA By JOHN G. TYLER Poll[ymbus pollceps. Pied-billed Grebe. In Pacific Coast Avifauna No. 9, page 13, I recorded this grebe as possibly occurring in winter. It has since proven to be a fairly common winter visitant and also breeds regularly. Specimens of birds and eggs have been examined. I have found the Eared Grebe breeding but have not as yet detected it' during the winter months. $terna forterh Forster Tern. This species is a common summer visitant to suitable places in the valley, but I had not observed the date of arrival in the spring until the past season, when large numbers were migrating northward in small squads averaging 7 or 8 birds each, on April 16 and 17, 1914. This was in the vicinity of Sum- mit Lake. Querq,edula cyanoptera. Cinnamon Teal. This friendly little duck bred in con- siderable numbers at a great many points in the vicinity of Fresno, young of various sizes being seen all through May and June, 1915. The broods usually numbered four or five and only occasionally more, the largest seen being of ten very small birds. Tis is the only variety of duck of my acquaintance in which the males attend the females and young. In many cases the drake is more solicitous than his mate and shows great distress when the young are disturbed. It is seldom that bcth parents are not seen caring for the young. Spatula clypeata. Shoveller. Several pairs of Shovellers nest each season around a willow-margined, but somewhat alkaline, pond near Riverdale. A 'female with 7 or 8 small young was seen on May 23, 1915, showing that the species nested later than some of the other ducks, as on the same day large floppers of Dafila acura were noted. rmatura jamalcensl. Ruddy Duck. I have often thought there must be a rather large proportion of non-breeding birds among our summer groups of this species. Per- haps the Ruddy does not breed until it has attained the age of several years. At one pond, where about twenty of these little ducks remained all through the summer, I could not find a single nest, although the one patch of tules ws searched repeatedly and persistently. At another small pond where three pairs were seen I was positive that only one nest was ever built. This contained four clean eggs on May 4, 1915, and the set had been completed by May 12 with the addition of two more eggs. Indeed, the nest was so small that it could not have accommodated more, and the weight of the six partly submerged the bottom of the nest which was built in the rules over water. All of the eggs were badly stained.
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