Everywhere in these solitudes I am greeted with the pensive, almost pathetic note of the Wood-Pewee. Do you know the Pewees? They are the true Flycatchers, and are easily identified. They are very characteristic birds, have very strong family traits, and very pugnacious dispositions. Without any exception or qualification they are the homeliest or the least elegant birds of our fields or forest. Sharp-shouldered, big-headed, short-legged, of no particular color, of little elegance in flight or movement, with a disagreeable flirt of the tail, always quarrelling with their neighbors and with one another, no birds are so little calculated to excite pleasurable emotions in the beholder, or to become objects of human interest and affection. The King-Bird is the best-dressed member of the family, but he is a braggart; and, though always snubbing his neighbors, is an arrant coward, and shows the white feather at the slightest display of pluck in his antagonist. I have seen him turn tail to a Swallow, and have known the little Pewee in question to whip him beautifully. From the Great Crested to the Little Green Flycatcher, their ways and general habits are the same. Slow in flying from point to point, they yet have a wonderful quickness, and snap up the fleetest insects with little apparent effort. There is a constant play of quick, nervous movements underneath their outer show of calmness and stolidity. They do not scour the limbs and trees like the Warblers, but, perched upon the middle branches, wait like true hunters for the game to come along. There is often a very audible snap of the beak as they arrest their prey. The Wood-Pewee, the prevailing species in this locality, arrests your attention by his sweet, pathetic cry. There is room for it also in the deep woods, as well as for the more prolonged and elevated strains. His mate builds an exquisite nest of moss on the side of some shelving cliff or overhanging rock. The other day, passing by a ledge near the top of a mountain in a singularly desolate locality, my eye rested upon one of these structures, looking precisely as if it grew there, so in keeping was it with the mossy character of the rock; and I have had a growing affection for the bird ever since. The rock seemed to love the nest and to claim it as its own. I said, What a lesson in architecture is here! Here is a house that was built, but built with such loving care and such beautiful adaptation of the means to the end, that it looks like a product of nature. The same wise economy is noticeable in the nests of all birds. No bird would paint its house white or red, or add aught for show.