1891] MARYLAND ACADEMY OF SCIENCES. 137 



the bird intended to have a full view of all that is going on. 

 There we hear its plaintive notes, rather different from those of 

 the Pewee proper, throughout most of the summer, and occa- 

 sionally even in September. The notes are " Pee-a-wee." 



It breeds as well in the depths of the woods as in the 

 orchards. The nest is an exceedingly beautiful structure, round, 

 almost circular, made mostly of soft material of various kinds. 

 The outside, which indeed gives the nest its beautiful appear- 

 ance, is covered with bluish-gray lichens. The nest is always, as 

 far as we have had occasion to observe, saddled on the branch 

 of the tree, which consequently gives its lower part a very 

 decided indent. It is sometimes attached in the orchard to an 

 apple tree, probably eight or ten feet from the ground. One was 

 obtained by the writer from a tree where it was situated at a 

 height of at least twenty-five feet from the ground. The eggs 

 are four or five in number, with dark brownish spots, some of 

 which are placed like a ring around the larger end. We have 

 found a nest late in July with eggs upon which the birds had 

 not yet begun to incubate. 



Empidonax acadicus (Gmel.). Acadian Flycatcher. 

 Small Green-crested Flycatcher. 



This flycatcher, by its greenish color, is easily distinguished 

 from the rest of the " Tyrannidae " inhabiting our woods during 

 summer. It arrives from the South about the first week in May. 

 It is moderately common all through the summer, frequenting 

 only shady woods, and preferring usually the lower parts of the 

 trees, and not seeking disguise in the foliage, as if conscious of 

 the protection afforded by its color. It seems to be of a rather 

 solitary nature. Toward the close of September it departs to 

 seek a more congenial climate for its winter home. 



This bird is entirely destitute of song or anything which 

 might be so designated. Only a squeaky note, -rather loud for 

 the size of the bird, is heard occasionally, which betrays the 

 bird, as we pass through the woods. When driven away by a 

 stranger it does not fly very far, but soon alights on some bough 

 of a tree near at hand. 



[MAY 18, 1891.] 



