Nest of Bireus—was Hudsonius Middlesex Co., Mass. June's Clear and my hot with S wind. Started off at 8 in my braggry and drows up into the millers killing my bank bird. Went directly in to my muth hawks nest and when within about 10 yds. the & rose from the nest and made off screaming shrilly a gwee quee quee, until my heavy charge of ½-6 stopped her. The nest contained four eggs, all spotted, and but one tinged slightly with green. The nest was placed flat on the ground in a deep meadow, and at the foot of a small clump of bushes but not among them. There was scarcely any depression in the centre where the eggs lay and the whole affair looked loosely and unkempt: though the grass composing the lining of lining it could be called now perhaps "circularly arranged" they were not certainly "interwoven" in any way. The exterior was composed of sticks many of them large, the interior wholly of dry grass; no feathers in fact nothing else whatsoever. Packing the eggs in my basket and propping up the dead & did the nest I concealed myself in a thicket of bushes within good range and awaited the return of the male. On the course of perhaps ten minutes I heard his kep, kep, kep overhead and looking up espied him sailing about at an immense height so high indeed that he looked no larger than a barn swall. A crow was scurrying about him and a Buteo lineatus that was sailing apparently in his company; and the trio soon