ESSEX HERONRIES. 179 told that the birds come to the heronry at the end of January or beginning of February, "and at once begin building operations. The old nests seem to require little repair. About fifty birds came to the trees in 1883; by the 6th of March, 1884, forty-three were counted, and there were probably more." At the meeting of the Club in the Park on April 21st, 1888, Goddard, the keeper, stated that in 1887 thirty-eight nests were counted, and that during the present spring he thought there were more. It was satisfactory to learn that the free admission of visitors to the park (excepting that the path by the lake is closed in May and June during nidification) has not apparently resulted in any injury to the heronry, and, contrary to the common opinion, the numerous rooks on the island appear to dwell in friendly relations with their long-legged neighbours. A sketch of the Wanstead Heronry is introduced in Seebohm's "History of British Birds" (vol. ii., p. 472), and by the kindness of Mr. Harting I am able to present to the readers of the Essex Naturalist a reproduction in lithography of a drawing of this heronry made by Mr. C. Whymper in 1885. This drawing forms the frontispiece to the present volume of the Essex Naturalist.5 Brightlingsea and St. Osyth Heronries.—In Yarrell's "British Birds," and other works, mention is made of a heronry at St. Osyth, but this appears to have been a mistake; the only heronry in the neighbourhood was one just over the arm of the Colne estuary at Brightlingsea. So far as I can learn there never was a heronry at St. Osyth, although as shown further on there is some hope that this defect may be speedily rectified. On the morning of April 19th, 1888, Mr. W. H. Harwood and myself visited the site of the Brightlingsea Heronry, which is now tenanted by rooks. It is a most secluded spot on the Wyvenhoe side of the twenty-seven acre grove, on Mr. Bateman's estate, known as Heronry Wood, a little more than a quarter of a mile west of Brightlingsea Church. Mark Gooch, the old keeper, told us that formerly the heronry certainly contained over a hundred nests, but that forty-three or forty-four years ago the largest trees were felled, and this seriously diminished the numbers of the herons ; then the rooks came, and they and the 5 Since this paper was written, Mr. Miller Christy has informed me that about five years ago several pairs of herons (doubtless a party from Wanstead) came and built in the trees round the ornamental water in the grounds of Gidea Hall, Romford. It was a very dry summer, and the water being very low, the herons were fast exterminating the fish, when the owner had them shot. None have built there since. Probably Mr. Christy will give more detailed information in a separate note.—E. A. F.