40 THE LONDON NATURALIST Cuckoo (Cuculus c. canorus, L,).—A common summer visitor. Average date of arrival April 21st. Swift (Micropus a. apus, L.).—A summer visitor, but no nesting localities known. Average date of arrival May 6th. Nightjar (Caprimulgus e. europaeus, L.).—A very local summer visitor. Average date of arrival May 10th. Kingfisher (Alcedo atthis ispida, L.).—A resident, but not numerous, more often seen in winter. Barn-Owl (Tyto a. alba, Scop.).—Recorded twice, in January, 1916, and February, 1022. British Tawny Owl (Strix aluco sylvatica, Shaw).—A common resident. Little Owl (Carine noctua mira, Witherby),—Recorded once only, September, 1921. Sparrow-Hawk (Accipiter n. nisus, L.).—Decidedly scarce. Re- corded as nesting successfully in 1921. Kestrel (Falco t. tinnunculus, L.).—Regularly hunts in the Forest, but apparently nests outside. One nesting record reported near They- don golf links, June, 1923. Mute Swan (Cygnus olor, Gmel.).—The Forest swans must be described as wild birds. Nesting localities, Highams Park lake and Barn Hoppit pond. Mallard (Anas p, platyrhyncha, L.).—A common resident, with much augmented numbers in winter. Teal (Querquedula c. crecca, L.).—One record, one seen by Keeper Stubbs on Strawberry Hill pond, August 7th, 1923. Shoveler (Spatula clypeata, L.).—One record, one seen by Keeper Stubbs on Strawberry Hill pond, September 3rd, 1923. Pochard (Nyroca f. ferina, L.).—A winter visitor recorded every year to and including 1921, but not since. Tufted Duck (Nyroca fuligula, L.).—A winter visitor. One nest- ing record in 1916. This species has entirely disappeared from Con- naught Water, where it was seen regularly in 1916 in flocks up to 50. It is still recorded in numbers from Wanstead. Heron (Ardea c. cinerea, L.).—The Wanstead Park heronry provides the most important feature of the bird-life of the woodland. Number of nests per annum:—1916,72; 1917, 60; 1918,56; 1919,54; 1920, 58 ; 1921, 69 ; 1922, 61 ; 1923, 58. Woodcock (Scolopax r. rusticola, L.).—A scarce winter visitor. Jack Snipe (Lymnocryptes minimus, Brunn.).—One record only, in 1916. Common Sandpiper (Tringa hypoleucos, L,).—Two records only, both from Connaught Water, May, 1917, and April 27th, 1923. Green Sandpiper (Tringa ochropus, L.).—One record only, Decem- ber, 1920. Curlew (Numenius a. arquata, L.).—One record only, September, 1921. Lapwing (Vanellus vanellus, L.).—Occasional flocks seen flying over, but do not often settle in Forest area.