l62 MEMOIRS OF THE NUTTALL ORNITHOLOGICAL CLUB 



in camp in a grove in the Ipswich dunes. This species which bred in the grove 

 left it by August 8. 



I have watched two flying up and fighting in the air and then tumbHng down 

 together in the tall grass. On another occasion four birds chased each other in 

 and out among the branches of oaks and birches, for the most part silently, occa- 

 sionally emitting sharp chips or all scolding together and snapping their bills. 



282 [654] Dendroica caerulescens caerulescens (Gmel.). 



Bl.ack-theoated Blue Warbler. 

 Common transient visitor. ^lay 4 to June i ; September 10 to October 8. 



283 [655] Dendroica coronata (Linn.). 



Myrtle Warbler; Yellow-rumped Warbler. 



Abundant transient visitor, common winter resident locally. August 19 to 

 May 21 ; average dates of migration, April 17 to May 15 ; September 10 to 

 November i. 



In the original Memoir I have recorded this bird as wintering in Magnolia in 

 1878, and also that it wintered at Swampscott and Ipswich. The following are 

 some records for another part of the County :^ " At East Salisbury, Mr. Damsell 

 shot one on January 23, 1884, and in several of the succeeding years he records it 

 at Amesbury, namely, February 10, 1887, a flock of five or ten; December 17, 

 1887; December 28, 1891 ; December 30, 1893; February 10, 1894; January i, 

 1901." 



The unusually severe winter of 1917-18 seemed to play havoc with the 

 wintering Myrtle Warblers at Ipswich. On January 6, after a long spell of cold, 

 —the thermometer registering on one occasion 22° below zero Fahrenheit, — I 

 could find only six of this species. After that I did not see any until May 5, 

 a late date for the spring migrants. The year before I had seen fifty Myrtle 

 Warblers in the Ipswich dunes on January 7. Dr. W. M. Tyler, who stayed at 

 Ipswich from April 21 to 24, 1918, saw the first migrants on April 24 in the 

 woods inland. 



]\Iuch farther south in the State, at Wareham, where these birds are common 

 in the winter, they also disappeared in the early months of 1918. Mr. C. A. 

 Robbins wrote that he found only one in January, none in February, none in 

 March, and none in April until the i6th when the migrants began to arrive. 



1 Alkn, G. M. Auk, vol. 30, p. 28, 1913. 



