On three occasions only has the Aquatic Warbler been recognised in England. One taken at Hove, near Brighton, in October, 1853, is in the collection of Mr. Borrer;[23] a second, in my possession, was killed near Loughborough, in the summer of 1864;[24] and a third, believed to have been obtained near Dover, is in the Dover Museum.[25] This bird resembles the Sedge Warbler in size and general appearance, but, in addition to the light stripe over each eye, it differs in having a light stripe down the centre of the forehead; this, being very distinct, furnishes a good means of identifying it readily. The species has been figured by Dr. Bree in his “Birds of Europe,” to which work the reader may be referred for further information and a more detailed description. I may supplement his remarks, however, by saying that Lord Lilford found it common in Corfu in May, and at Nice in August and September;[26] and that Mr. T. Drake met with it in March in Tangier and Eastern Morocco.[27] Now that its occasional presence in this country has been detected, ornithologists should look out for it between April and September, and scrutinize every Sedge-bird they see, on the chance of meeting with the rarer species.