DELAWARE VALLEY ORNITHOLOGICAL CLUB. 23 



Frankford, R. F. Miller. Buckingham, Miss E. C. Cox 

 Mt. Airy, S. H. and R. W. and Miss E. D. Broadhurst. 



Barker. Collegeville, W. A. Kline. 



Ardmore, W. L. Baily. Reading, E. L. Poole. 



Haverford, W. J. Serrill. Lopez, Otto Behr. 



Haverford, G. T. Scoville. Altoona, H. A. McGraw. 

 Haverford, Edward Woolman. 



We would again urge study of the " suggestions" previously 

 mailed * to all observers in order that each one may become 

 familiar with the time at which the various species may be 

 looked for. Records of rare species, or common species at un- 

 usually early dates, are ignored in the published summary un- 

 less some explanation is added showing that the observer is 

 aware of the importance of his record. Kindly do not insert 

 additional species on the front of the schedule as it adds to the 

 task of the compiler which is in any case a laborious one. 

 Write such species on the back according to instructions. We 

 should also like to have as many separate schedules as possible. 

 Please do not combine your report with that of another observer 

 unless the work is actually done in company. 



The season of 1918 was remarkable for the fact that we ex- 

 perienced the coldest weather for many years during January — 

 unprecedented along the southern New Jersey coast, while in 

 August we had the hottest temperature ever recorded in summer. 

 Neither of these however seemed to have any appreciable effect 

 on the migration. 



The notable feature of the 1918 spring migration was the 

 great scarcity of warblers and absence of the usual conceatrated 

 '* waves." Arrival dates in the case of most species are conse- 

 quently more scattered than usual. Figuring out the dates of 

 "bulk arrival" in the usual way, we find that they average 

 about two days late; some, where the departure from normal is 

 greater, are obviously inaccurate because of the very insufficient 

 data. 



The earliest migrants — February and early March — were all 

 a few days early, those of April and the first week of May sev- 

 eral days late and those for the middle of May about normal. 



* Copies to be had on application. 



