iS9i-j BoLLF.s on the Tclloiv-helUed Woodfccker. 26? 



Creeping Warbler was driven from the tree. A Red-eyed Virco 

 was not disturbed in tbe higher foliage. Three separate times 

 while one Hummingbird was dipping another came. The eflect 

 was astonishing. Volleys of squeaks proceeded from both l)irds. 

 They dropped directly downwards from the tree about twenty feet, 

 and when close to the tops of bushes and brakes began to go back- 

 wards and forwards like a long pendulum, the trunk of the tree 

 coming opposite the lowest point of their course, and the arc 

 made by them measuring about forty feet. Their humming and 

 squeaking were continuous. At the end of the performance only 

 one bird was to be seen and he quietly perched in the tree. I 

 think this oscillating flight was made five or six times in each 

 of the three performances which I witnessed. 



The following evening, July 35, I visited Orchard No. 2 

 again. One Sapsucker and two Hummingbirds were at work 

 dipping between 7.20 and S. p. m. The pendulum act was not 

 performed. The Hummers were not disturbed by the Wood- 

 peckers. They continued to dip until it was too dark for me to 

 see them although I could hear their wingfs. 



On the preceding morning after m}' visit to Orchard No. 2, I 

 spent a short time at Orchard No. i . I found the birch bark 

 cups empty. I filled them and as I reached the ground the young 

 Woodpecker came and began dipping from cup No. 3. He 

 dipped ten times, then poked into two drills and flew awa}^ The 

 female came immediately after, dipped in a few drills, saw the 

 fresh syrup, dipped ten times in cup No. i, and flew awaj-. That 

 day and the 26th were rainy. On the 27th at 6. 1 1^ a. m. I saw 

 a male Hummer working on evening primrose blossoms. He 

 ignored other flowers. I reached Orchard No. i at 6.3^. The 

 young one was there. I filled cup No. i, the others being torn 

 or warped. A Hummer flew almost into my face while I was in 

 the tree. About twenty new drills had been made since the 23d, 

 all being higher up the trunk than previous ones. About two 

 inches in height had been gained. I remained on the watch 

 nearly nine hours, going away only for meals and a brief visit to 

 Orchard No. 2. During the nine hours the male paid ten visits 

 to the tree, the female four and the young one three. Forty-one 

 visits were made by Hummingbirds, in several instances two 

 were in the tree at once. The tree swarmed with insects, mainly 

 large flies. One or more butterflies came. Early in the morning 



