I heard a robin begin his strain, and yielded the point to him.

Turdus migratorius

May 4.

A robin sings when I, in the house, cannot distinguish the earliest dawning from the full moonlight. His song first advertises me of the daybreak, when I think it night, as I lie looking out into the full moonlight. I heard a robin begin his strain, and yielded the point to him, believing he is better acquainted with the springs of the day than I, — with the signs of day. 

5 A. M. — To Hill. 

Many red-wings and grackles feeding together on meadows. They still fly in flocks. Some dark—ash; are they female grackles? Hear a brown thrasher.

Yellow lily pads are just beginning to show themselves on the surface, the first noticeable on the water. 

All kinds of young maples, and some limbs of large white, begin to leaf. Red maple blossoms begin to cover ground. Ostrya will leaf to-morrow. The second amelanchier, sweet-fern, and early thorn begin to leaf to-day. Small white-barked shrub (andromeda ?) on Island Neck begins to leaf to-morrow.

I think I hear a warbling vireo. 

Birds. Still see three or four crows together, though some at least are building. Jays do not scream as early. Chickadee, spring notes still. Partridges setting. Have noticed no ducks for some days. All the black blackbirds as plenty as ever, and in flocks. Have not noticed robins in flocks for two or three days. See no gulls, nor F. hyemalis nor tree sparrows now. Red tail hawk young fourteen days old. Snipes feeding in numbers on the 29th April. Yellow redpolls in numbers May 1st. woodcocks setting. Purple finch sings steadily. Myrtle-birds numerous, and sing their tea lee, tea lee in morning. White-throated sparrows here, and numerous. No goldfinches for long time. 

The water is now generally off the meadows. 

P.M. — To beeches. 

Seiurus aurocapilla

In cut woods a small thrush, with crown inclining to rufous, tail foxy, and edges of wings dark-ash; clear white beneath. I think the golden-crowned? 

See more white-throated sparrows than any other bird to day in various parts of our walk, generally feeding in numbers on the ground in open dry fields and meadows next to woods, then flitting through the woods. Hear only that sharp, lisping chip from them.

A partridge’s grayish tail-feather, with a subterminal dark band. 

Several larger thrushes on low limbs and on ground, with a dark eye (not the white around it of the wood thrush) and, I think, the nankeen spot on the secondaries. A hermit thrush? 

Sitting in Abel Brooks’s Hollow, see a small hawk go over high in the air, with a long tail and distinct from wings. It advanced by a sort of limping flight yet rapidly, not circling nor tacking, but flapping briskly at intervals and then gliding straight ahead with rapidity, controlling itself with its tail. It seemed to be going a journey. Was it not the sharp-shinned, or Falco fuscus? 

I think that what I have called the sparrow hawk falsely, and latterly pigeon hawk, is also the sharp-shinned (vide April 26th and May 8th, 1854, and April 16th, 1855), for the pigeon hawk’s tail is white-barred. 

Found a black snake’s skeleton. Remarked the globular protuberance on which the vertebrae revolve, and the four (?) sharp, recurved teeth in the lower jaw. 

Red cherry not generally leafing before yesterday. Sand cherry yesterday leafs. 

See where a skunk has probed last night, and large black dung with apparently large ants’ heads and earth or sand and stubble or insects’ wings in it; probably had been probing a large ants’ hill. 

Was that a cerasus or prunus on Pine Hill? 

The beech leaf-buds are very handsome reddish-brown now, some nearly an inch and a half long and very slender, not more than a sixth of an inch in diameter and regularly swelling from each end; will open, apparently, in three or four days. The blossom-buds are still larger; may bloom in eight days. 

Potentilla out. What that plant in Baker’s Pool, with sessile spatulate leaves toothed at end, now four or five inches high? 

Noticed a perfectly regular circular concavity in a sandy soil in a hollow in birch woods, where apparently a partridge had dusted herself.

Yesterday a great many spotted and wood tortoises in the Sam Wheeler birch-fence meadow pool, which dries up. One of the former gradually settled itself into the sod by turning round and round and scratching with its claws. 

A shower.

H. D. Thoreau, Journal, May 4, 1855

Was it not the sharp-shinned, or Falco fuscus? See July 21, 1858 (“A young man killed one of the young hawks, and I saw it. It was the Falco fuscus, the American brown or slate-colored hawk.”) See also A Book of the Seasons, by Henry Thoreau, The Sharp-shinned Hawk

I think that what I have called the sparrow hawk falsely, and latterly pigeon hawk, is also the sharp-shinned . . .  See July 2, 1856 (“Looked at the birds in the Natural History Rooms in Boston. Observed no white spots on the sparrow hawk’s wing, or on the pigeon or sharp-shinned hawk’s. Indeed they were so closed that I could not have seen them. Am uncertain to which my wing belongs.”) See also  A Book of the Seasons by Henry Thoreau, The Pigeon Hawk (Merlin)