"Nest building habits of Circus cyaneus" 1875 Middlesex Co., Mass. May 24. adjoining tree. From the ground of the creching platform of Hicks I think however that he could not see me when underneath but it was very still & he must have heard the crackling of the dry twigs etc. I shall get at the nest to morrow in some way or other if possible. Taking a look into the shadows where I saw the marsh hawks last week what was my delight at finding the birds both then and engaged at building their nest. The ⌐ sat on a stake while the ⌓ collected dry grass and carried it to a certain spot among some low shrubs when he dropped and after remaining about 30 seconds started off again. Frequently he would go not more than 80 feet or so for this purpose and men over 100 yds. They ⌐ only went to the nest once during 2 hour or more that I spent watching them. They kept up an almost incessant calling to one another, a shrill squeaky que, que, que very different from any note I ever heard them utter before. Whether the ⌓ passed his bill or feet in collecting & transporting the grass I could not decide as I did not dare to approached too close, but I think that the feet were the members employed. Finally the ⌓ soared up into the sky and disappeared when I approached within 20 yds. of the nest