Zoo Helmuth, Notes while in Naval Service. [.April 



shore, November 1 ; Bar Harbor to Rockland, Me., inshore, Nov- 

 ember 2; Rockland to Portland, Me., November 4. 



Colymbus a. auritus. Horned Grebe. — In the harbor of Machias- 

 port, November 1, there were nearly 500. [This unusual concentration 

 may indicate that the height of southward migration had reached this 

 point on the coast. J. T. N.] 



Alle alle. Dovekie. — Three Dovekies seen, Oct. 31, one of which we 

 almost cut down. The wings of these little birds move incredibly fast, 

 and they bear a certain resemblance to tiny Old Squaws in their manner 

 of flight. Six observed on November 1. 



November 4, off the Maine coast, my brother counted 83 Dovekies dur- 

 ing his hour on the bow look-out, and 103 from the crow's-nest in an hour. 

 We passed through scattered flocks of them all day. They rose before the 

 bows in little flocks, flying to either side, usually for only a short distance 

 before either dropping down into the water again or diving from the air. 

 They flew low over the water for the most part. 



Rissa t. tridactyla. Kittiwake. — Several flocks of about a dozen 

 each, seen while crossing Massachusetts Bay, late October. Abundant 

 offshore north of Boston and inshore north of Rockland. Common along 

 coast from Rockland to Portland. [The abundance of this species on 

 the Maine coast at this season would seem to indicate that it first moves 

 southward inshore and then V's somewhat outward and also scatters dir- 

 ectly outward across the ocean. J. T. N.] 



Sula bassana. Gannet. — Going north several were seen crossing 

 Massachusetts Bay. From Boston to Maine they were common, almost 

 all adults, which may indicate that the adults move southward first. 



Phalacrocorax carbo. Cormorant. — On October 31, when well out 

 at sea a large, ragged-looking cormorant was seen, which I identified as 

 carbo. Three more of the same species were seen on November 1, in the 

 early morning, far offshore. 



Spinus pinus. Pine Siskin. — On November 2, between Bar Harbor 

 and Rockland, a flock of Siskins and another of Horned Larks came aboard 

 lighting all over the rigging. Many large flocks of Siskins noted during 

 the day, all going north. Mr. Nichols suggests that this northward mi- 

 grational movement may be accounted for by the deeply-indented, broken 

 coast line of Maine, affording many opportunities for migrational eddies 

 of the type so often observed in similar regions. 



II. 



Waterfowl in the Vicinity of Delaware Bay, in Late Nov- 

 ember, 1917. 



November 24, 1917. At anchor in lower Delaware Bay. Red-breasted 

 Mergansers, Old Squaws, and Scoters in myriads, especially the first- 

 named species. The birds were for the most part flying across the sandy 



