Banks 1956 Brevis Blackbird 2 Mar Edwards Field - two pair of birds. One I gave wheezing note, at the same time bowing his head, fanning his tail and spreading his wings. He did this several times. Occasionally the 2 would answer with a similar note, but I did not see her action. Soon the 2 picked up 3 pieces of nesting material, one long weed stem, one piece grass (?), one fuzzy item and flew out N side of Field, which would be along Fulton. The other pair flew off a long ways, toward Uptal Press (?) First 2 frightened by a Calf. Jay flew over N wall toward where the 3 had gone.