The _Redbreast_ has been, I am told, occasionally seen in the neighbourhood of Fleet-market and Ludgate-hill. I saw it myself before the window of my present residence, Dalby Terrace, in November, 1825, and in Nov. 1826, the _Wren_ was seen on the shrubs in the garden before the house at Dalby Terrace; it was very lively and active, and uttered its peculiar _chit, chit_. The _Starling_ builds on the tower at Canonbury, in Islington; and the _Baltimore Oriole_ is, according to Wilson, found very often on the trees in some of the American cities; but the _Mocking-bird_, that used to be very common in the American suburban regions, is, it is said, now becoming more rare, particularly in the neighbourhood of Philadelphia. The _Thrush_ was also often heard in the gardens behind York-place, during the spring of 1826. I heard it myself in delightful song early in March, 1826, among the trees near the canal, on the north side of the Regent's Park. Some of the migratory birds approach much nearer to London than is generally imagined. The _Cuckoo_ and _Wood-pigeon_ are heard occasionally in Kensington-gardens. The _Nightingale_ approaches also much nearer to London than has been commonly supposed. I heard it in melodious song at seven o'clock in the morning, in the wood near Hornsey-wood House, May 10, 1826, which is, I believe, the nearest approach to St. Paul's it has been for some time known to make. It is also often heard at Hackney and Mile-end. I have also heard it regularly for some years past in a garden near the turnpike-gate on the road leading from London to Greenwich, a short distance from the third mile stone from London-Bridge. This charming bird may be also heard, during the season, in Greenwich Park, particularly in the gardens adjoining Montagu-house; but never, I believe, on its lofty trees. The _Nightingale_ prefers copses and bushes to trees; the _Cuckoo_, on the contrary, prefers trees, and of these the elm, from which it most probably obtains its food. The _Nightingale_ is also common at Lee and Lewisham, Forest-hill, Sydenham, and Penge-wood; in all these places, except Hackney and Mile-end, I have myself often heard it, and in the day-time. Those who are partial to the singing of birds generally, will find the morning, from four to nine o'clock, the most favourable time for hearing them----_Jennings's Ornithologia_. * * * * * MOCK SUNS.