A time to see the osprey.

April 28. 

Blustering northwest wind and wintry aspect. 

April 28, 2018

A. M. — Down river to look at willows. 

The common S. cordata apparently not yet within two days at least. This salix is not always conspicuously double-scaled, nor is the scale carried up on the catkin. It is not always even on that of the S. Torreyana. 

I see the fish hawk again . . . As it flies low, directly over my head, I see that its body is white beneath, and the white on the forward side of the wings beneath, if extended across the breast, would form a regular crescent. Its wings do not form a regular curve in front, but an abrupt angle. They are loose and broad at tips. This bird goes fishing slowly down one side of the river and up again on the other, forty to sixty feet high, continually poising itself almost or quite stationary, with its head to the northwest wind and looking down, flapping its wings enough to keep its place, some times stationary for about a minute. It is not shy. This boisterous weather is the time to see it. 

I see the myrtle-bird in the same sunny place, south of the Island woods, as formerly. Thus are the earliest seen each spring in some warm and calm place by the waterside, when it is cool and blustering elsewhere. 

The barn swallows and a martin are already skimming low over that small area of smooth water within a few feet of me, never leaving that spot, and I do not observe them thus playing elsewhere. Incessantly stooping back and forth there. 

P. M. — To Ledum Swamp. 

At Clamshell Ditch, one Equisetum sylvaticum will apparently open to-morrow. 

Strawberries are abundantly out there; how long?

Some Salix tristis, bank near baeomyces. Did I not put it too early in last year's list of willows? Probably earlier elsewhere? 

The snow was generally gone about 10 A.M., except in circular patches in the shadow of the still leafless trees.

H. D. Thoreau, Journal, April 28, 1858

This boisterous weather is the time to see it. See April 28, 1860 (" Sitting on Mt. Misery, I see a very large bird of the hawk family, blackish with a partly white head but no white tail, - probably a fish hawk; sail quite near, looking very large. "); April 14, 1852 (“The streams break up; the ice goes to the sea. Then sails the fish hawk overhead, looking for his prey.”) See also A Book of the Seasons,  by Henry Thoreau, the Osprey (Fish Hawk)

Thus are the earliest seen each spring in some warm and calm place by the waterside, when it is cool and blustering elsewhere. See April 28, 1855 ("In a cold and windy day like this you can find more birds than in a serene one, because they are collected under the wooded hillsides in the sun.”)

At Clamshell Ditch, one Equisetum sylvaticum will apparently open to-morrow. Strawberries are abundantly out. See May 6, 1856 (“Equisetum sylvaticum a day or two on the ditch bank there.”); May 10, 1857 (“This side Clamshell, strawberries and cinquefoil are abundant. Equisetum sylvaticum.”)