These birds, as they stand numerically, belong to the following Linnæan genera:

Birds that sing in the night are but few.

Nightingale,

Woodlark,

row,

Less reed-spar- J Passer arundi-j Among reeds and naceus minor:{ willows.

I shall now proceed to such birds as continue to sing after midsummer, but as they are rather numerous, they would exceed the bounds of this paper; besides, as this is now the season [end of June] for remarking on that subject, I am willing to repeat my observations on some birds, concerning the continuation of whose song I seem at pre

sent to have some doubt.

II.

WHEN I did myself the honour to write to you about the end of last June on the subject of natural history, I sent you a list of the summer birds of passage which I have observed in this neighbourhood, and also a list of the winter birds of passage; I mentioned, besides, those soft-billed birds that stay with us the winter through in the south of England, and those that are remarkable for singing in the night.

According to my proposal, I shall now proceed to such birds (singing birds, strictly so called) as continue in full song till after midsummer, and shall range them somewhat in the order in which they first begin to open as the spring advances.

sumes in autumn.

12. White-throat, Ficedula affinis: In April, and on to

July 23.
April, and through
to September 16.
On to July and Au-

gust 2.

Passer arundina- J May, on to begin

ceus minor:

ning of July. Breeds and whistles on till August;

re-assumes its note

when they begin to congregate in October, and again early before the flocks separate.

Birds that cease to be in full song, and are usually silent at or before midsummer:

17. Middle wil- Regulus non cris- Middle of June;

low-wren,

tatus:

{

Birds that have somewhat of a note or song, and yet are hardly to be called singing birds:

All singing birds, and those that have any pretensions to song, not only in Britain, but perhaps the world through, come under the Linnæan ordo of passeres.

The above-mentioned birds, as they stand numerically, belong to the following Linnæan genera.

Birds that sing as they fly are but few:

Rising, suspended, and falling.

In its descent; also

sitting on trees, and walking on the ground. Suspended; in hot summer nights all night long. Sometimes from bush to bush. Uses when singing on the wing odd jerks and gesticulations.

In soft sunny weather.