The Hawkey e O. and O. 27 



through the forest aisles, if you wish the students of your favor- 

 ite study in years to come, to love and enjoy them too, set 

 your face against the reckless slughater going on from day to 

 day. Be contented with fewer skins, with fewer eggs. I have 

 no collection. I had a small one of eggs, but I gave it up, and 

 I learn more now than then, for I can give to the birds them- 

 selves the time I spent in preparing specimens. Watch the 

 birds build their nests, learn the materials they use in its con- 

 struction, bend over the nest gently and note the number and 

 color of the eggs, and then retire and let them rear their brood in 

 peace; and when the Summer is over, and you see the young 

 birds joyfully start with the old ones for the Sunny South, you 

 will be thankful that on your account there is not one bird less. 



NESTING OF THE MARYLAND YELLOW-THROAT IN 

 SOUTHWESTERN PENNSYLVANIA. 



BY J. WARREN JACOBS, WATNESBURG, PA. 



The Maryland Yellow-throat {G. trichas) is a common Sum- 

 mer resident here. Arriving early in May, he makes his pres- 

 ence known by his clear, musical notes, which ring from the 

 brier, gulch and thicket. At this time of the season I am 

 searching the wood and field in quest of the treasures of our 

 leathered friends, and as I stroll along I am ever cheered by his 

 lively song. 



About the twentieth of the month quite a number of pairs are 

 at nest building. The materials used seem to vary with the loca- 

 tion. I have found the nests made of leaves with scarcely any 

 lining, and some made of a mixture of leaves, hair, grass, moss, 

 etc., and others made almost wholly of dry grass. 



The number of eggs laid ranges from four to five. When the 

 nest contains eggs of the Cowbird, the set of Yellow-throat's is 

 usually incomplete, there being but two or three laid . 



