Morula miKratoria . 



Concord, I.Iass. Roost. 



1898. About 5.30 P.M. I toolc a walk around the eastern end of 



I'larcli 20. Ball's Hill. Saw fifteen or twenty Robins flying in to the 



old spring roost in the dense, bushy pines on the edge of the 



swamp. They all oane across the ri/er fro:a the 77. Bedford 



shore. Several of thein sang for a raoraent before going to 



sleep. I do not thinl; that they cong^ijgate at this roost in 



spring excepting when there is a strong H.W. wind. 



Roost and sinj^ing on wing. 

 1399^ A few Robins cai^e to the spring roost in the dense pines 



April 24. behind Ball's Hill this evening. All appeared to be males 



and there was, as usual, much singing and calling. I was as- 

 tonished to see one bird sing on wing. I heard hiin in the 

 distance at first, mien he appeared he -was flying in the 

 usual manner but rather slowly. He continued his song with- 

 out the slightest breal: when and after he reached his perch 

 on the topmost spray of a tall pine. There was nothing pecu- 

 liar about the song. Evidently it was not a real flight song 

 uut the bird was simply so i\ill of his theme that he could 

 not wait until he reached the end of his short journey. 



Roost . 



The Robins came into this swaiap (behind Ball's Hill) to 

 may S, roost as usual - about a dozen of them, all males I think. 



They are roosting this spring in the blueberry bushes - not 

 in the pines as formerly. 



