144 



was fonnd iu some hushes along a street in town. The side-spots were 

 large and brilliant as was also the rump. The hack had the sharply 

 defined black and gray streaking, but the head and breast were as in 

 winter. Marcii 21, a specimen in winter plumage was seen; March 23, 

 two individuals, one in full plumage with the exception of the crown- 

 spot which Avas somewhat obscured by dark tips to the feathers, the 

 other in the usual autumnal and winter garb. March 25, four Myrtle 

 Warblers were seen, and of these, one had the winter plumage, two had 

 yellow crown and rump but no side-spots, and one was brilliant in a new 

 and complete spring suit. March 27, one with Avinter colors; March 30, 

 one iu complete and one in winter plumage; April 1, two like the last. 

 April 3, three specimens with all the spots showing but only dimly on the 

 sides and crown. After April 3 all mentioned are in full plumage unless 

 otherwise stated. April 5, two, one in winter dress; April 8, four, one 

 in winter plumage; April 11, i'onv; April 12, twelve; April 14, three, two of 

 which were clothed as in winter; April 15, four; April 19, six, one looking 

 ,1ust as he did in .January, and he was the last one observed in this 

 plumage, although of twenty-one seen on April 28, two were still iu 

 transition stages of plumage. Thus fifty days elapsed between the first 

 and last observed changes in plumage, and, half as many days passed 

 between the appearance of summer dress and the vanishing of winter 

 garl). 



In the fall the first yellowrumps were seen on October 12 (1902). Of 

 thirty individuals, one had the sides yellow, while all of the others had 

 already assumed the sombre shades of winter plumage. October 26, 

 fourteen of these birds were observed and one was still in nearly perfect 

 summer condition, the crown and sides being only slightly dusted with 

 darker. All others seen during the remainder of the year were in ordi- 

 nai-y winter plumage. From these observations it may l)e seen that, 

 although about eight months are consumed in the change from winter, 

 through summer, back to Avinter plumage again, by the species as a 

 whole, yet it is possilile tiiat some individuals may complete this cycle 

 of changes in six months. 



On December 14, 1902, a ^Myrtle Warbler was seen hying in somcAvhat 

 wide sweeps, like a flycatcher, lint, hovering, he gleaned from the trees, 

 fences iind the ground, and not from the air. 



