24 



Hermit Thrush 



Ruby-crowned Kinglet . . 



Brown Thrasher 



House Wren 



Yellow Palm Warbler. . . 



Chewink 



Black and White Warbler 



Kingbird 



Crested Flycatcher . . . . 

 Maryland Yellow-throat . 



Wood Robin 



Indigo-bird 



Hummingbird 



Baltimore Oriole ... 

 Rose breasted Grosbeak . 



Redstart 



Black throated Blue W. . . 

 Scarlet Tanager ... 

 Biackpoll Warbler . . . . 

 Canadian Warbler . . . . 



Apr. 5 

 Apr, 11 

 Apr. 3 

 Apr. 12 

 Apr. 12 

 Apr. 27 

 Apr. 27 

 Apr. 26 

 Apr. 30 

 Apr. 24 

 May 1 

 May 10 

 May 

 May 

 May 

 May 

 May 

 May 

 May 

 May 11 



tl 



Apr. 9 

 Apr. 10 

 Apr. 14 

 Apr. 20 

 Apr. 12 

 Apr. 23 

 Apr. 23 

 Apr. 30 

 Apr. 30 

 Apr. 24 

 Apr. 30 

 May 1 

 May 7 

 May 1 

 May 4 

 May 4 

 May 4 

 May 9 

 May 6 

 May 9 



^ 



Apr. 12 

 Apr. 12 

 Apr. 13 

 Apr. 12 

 Apr. 13 

 Apr. 26 

 Apr. 24 

 May 5 

 May 5 

 Apr. 24 

 Apr. 30 

 May 7 

 May 10 

 May 4 

 May 1 

 May 1 

 May 1 

 May 9 

 May 7 

 May 11 



1^ 

 O 



Apr. 10 

 Apr. 12 

 Apr. 13 

 Apr. 27 

 Apr. 23 

 Apr. 26 

 Apr. 27 

 May 7 

 Ma^ 7 

 Apr. 27 

 Apr. 25 

 7 

 10 

 1 

 1 

 1 

 4 

 3 



May 



May 



May 



May 



May 



May 



May 



May 11 



May 11 



Apr. 13 

 Apr. 12 

 Apr. 30 

 Apr. 30 

 Apr. 27 

 May 1 

 Apr. 30 

 May 14 

 May 14 

 Apr. 30 

 Apr. 30 

 May 10 

 May 7 

 May 1 

 May 10 

 May 3 

 May 3 

 May 4 

 May 7 

 May 10 



Most of the earliest aiTivals were reported from a tract of marsh and 

 woodland situated at Tinicum, immediately on the Delaware river, 

 ten miles below Philadelphia. The next reports generally came from 

 the vicinity of the tide-water creeks near Haddonfield, N. J., five 

 miles from the river and eight miles southeast of Philadelphia. 



The other three stations were all situated on higher ground, from 

 four to eight miles back from the river. Of these Wynnewood gen- 

 erally furnished the earliest records, probably partly on account of 

 the valleys of the Darby Creek and Schuylkill River leading directly 

 towards it. Olney and Germantown were usually the last stations to 

 report an arrival, being situated farthest up the river as well as back 

 from it. The thickly built portioH of Philadelphia intervening di- 

 rectly between these stations and the river, to the south, may also 

 have affected the arrival of migrants — especially at Germantown. 



The full records of the spring migration at these stations show that 

 those species which exhibit the greatest diversity in time of arrival 

 are the migrants of early spring, many of which often occur in win- 

 ter in small numbers, so that a few stragglers would be very likely to 

 reach one station or another before any general migration took place. 



