July 27, 1788
Posted by sydney on Jul 27th, 1788
We have had a few chilly mornings & evenings, which have sent off the swifts. I have remarked before, many times, how early they are in their retreat. Surely they must be influenced by the failure of some particular insect, which ceases to fly thus early, being checked by the first cool autumnal sensations; since their congeners will not depart yet thses eight or nine weeks.