WARBLERS 539 



partly in Veazie and partly in Orono, this bog is along both 

 sides of Stillwater Avenue for a quarter of a mile. From 

 Stillwater Avenue on the northwest side the bog extends three 

 miles with various interruptions to Pushaw Pond and along 

 the eastern side of the pond for nearly seven miles. Though 

 thickly wooded or interspersed with alder swamps in limited 

 spots, the vast bulk of this bog consists of large, open, boggy 

 expanses thickly covered with a dense carpet of sphagnum 

 moss and doited with black spruce and hackmatack trees and 

 various small shrubs. Among the characteristic vegetation 

 may be enumerated : Hackmatack ( Larix laricina) ,• Swamp 

 Spruce (Picea brevifoliaj ,• Labrador Tea (Ledum groenlandi- 

 curn); Rhododendron ( Rhodora canadensis J ; how Birch ( Betula 

 pumila); V\\.c\ier-\Aa,ni(Sarra<:enia purpurea); Buckbean (^ J/iew- 

 yanthes trifoliata) ,• Arethusa (Arethusa hulhosa) ; Calopogon 

 (Limodorum tuberosum) ; Pogonia (Pogonia ophioglossiokles ); 

 White-fringed Orchis ( Habenaria blephariglottis ) ; Cranberry 

 ( Vaccinium oxycoccus) ; Yellow Ladies' Slipper ( Cypripedium 

 parviflorum) and many other characteristic plants, largely 

 sedges. Such is the region preferred by the Yellow Palm 

 Warbler as a summer home, and in the open sunny spots where 

 grow the orchids amidst scattered shrubs and trees you may 

 seek their nests." 



Nest building must begin early in May, as well grown young 

 have been found the first of June. I am satisfied that both 

 parents share in the duties of incubation and both take part 

 in caring for the young. The nests can be easily located by 

 watching the parents carrying food to the young, but before 

 the eggs have hatched the birds are very shy of approaching 

 the nest when observers are about. The incubating bird will 

 remain on its nest until almost stepped upon before flying, 

 and practically the only way of discovering nests is by flushing 

 birds therefrom, unless some reckless person is willing to visit 

 the bog and spend day after day during the nest building 

 season, fighting the voracious mosquitoes and meanwhile watch- 



