1895 JIARYLAND ACADEMY OF SCIENCES. 305 



it liad been feeding on a Snow-bird. On April 30, '03, in 

 Dulaney's Valley two birds swished close past me making for 

 a small scrubby thorn bush, round whifli they w^ent several 

 times; finally one darted into its centre, the other kept round 

 once more and lit on top. I then saw that they were a Catbird 

 and a Pigeon Hawk, the hawk seeing me flew, but the Catbird 

 remained apparently thoroughly exhausted. On October 30, 

 '92, I surprised one feeding on a doye. A not unconnnon 

 migrant at AVashington (Richmond). " Mr. F. L. A\^ashburn, 

 of Johns Hopkins University, has reported to the Agricultural 

 Department that he observed several })nirs, ajiparently breeding 

 at Harper's Ferry, April 12, '87" (Birds Vas., G2). 



Falco sparverius (3G0). American Sparrow Hawk. 



Resident, common, but most numerous during the migrations 

 of small bird. Hence, on March 18 ('93, Wholcy and Gray) 

 about 75 were seen in Dulaney's Valley. During summer they 

 are not often seen except in the locality of the nest. Dates for 

 eggs range from April 17 ('95, Hcnninghouse) to May 28 ('93), 

 and a second set was taken June 24 ('94). On August 4 ('95) 

 flying young were slill being fed by the parents. Sets are 9 of 

 4 and 6 of 5. 



Pandion haliaetus carolinensis (3G4). American Osprey. 



Common summer resident on all our larger waters, extremely 

 numerous on the arms of the Chesapeake. On March 11 ('93, 

 Blogg) five were seen at Fulton Avenue. On the Eastern 

 Shore it is maintained that they always arrive on St. Patrick's 

 Day, March 17. Dr. Sharp's attention was called to this, and he 

 reported that the first bird arrived at Rock Hall on March 14, 

 '95. Late in September most have gone south, but they have , 

 been noted later, the last on November 8 ('92, Blogg). 



On April 3 ('93) they were patching up old nests at the 

 month of Gun[)ow(ler, and on April 24 ('94, Tylor) sets of 

 fresh eggs were collected in Talbot County, where on August 



