lilRDS OF A WASHINGTON CITY DOORYARD 7 



37. Hylocichla mustelina. Wood Thrush. 



Rather strangely of not at all frequent occurrence. There are 

 only three positive records — May 17 and 20, 191 7, and one other 

 for which we have no definite date. 



38. Polioptila caerulea caerulea. Blue-gray Gnatcatcher. 

 Once observed, but date not recorded. 



39. Regulus calendula calendula. Ruby-crowned Kinglet. 

 Seen, October ii, 191 7, and November 4, 1916. 



40. Orchilus regulus satrapa. Golden-crowned Kinglet. 



Of much more frequent occurrence than the Ruby-crowned 

 Kinglet, but still not very common. Noted on only the following 

 dates: October 5 and 15, 1913; October 7 and 8, 19 16; October 

 31, 1 915; and November 7, 1915. For the vicinity of Washington, 

 the average arrival at this season is October 6. 



41. N annus troglodytes hiemalis. Winter Wren. 



One was reported in autumn by Miss May T. Cooke, but date 

 not recorded. 



42. Troglodytes aedon aedon. House Wren. 



Strange to say, of very infrequent occurrence, and observed 

 only in May. Our records are May 2, 19 15, May 4, 19 14, and May 

 21, 1917. 



43. Thryothorus ludovicianus ludovicianus . Carolina Wren. 

 Also of ver}^ infrequent occurrence. The only dates are May 



8, 1914; August 22, 1915; and October 26, 1916. 



44. Certhia familiaris americana. Brown Creeper. 

 Observed on but one occasion, of which the date was not noted. 



45. Sitta canadensis. Red-breasted Nuthatch. 



Observed occasionally in September and October, but in no 

 other month of the year. Our records are: September 18, 1914; 

 September 26 and 27, 1916; October 3, 6, 7, 8, and 15, 1916; 

 and October 5, 19 13. 



46. Sitta carolinensis cookei. White-breasted Nuthatch. 



This bird seems to be much less frequent than the Red-breasted 

 Nuthatch, for we have only two definite records — October 5 and 

 '22)y I9i3.and one other without date. 



47. Penthestes carolinensis carolinensis. Carolina Chickadee. 

 Once noted, but date unknown. 



