84 THE BIRDS OF ESSEX. stead Park, where the wood echoes in early summer with its fine song." Round Orsett it is uncommon (Sackett). At Harwich it is " scarce," though it breeds (Kerry). Garden Warbler : Sylvia hortensis. A fairly-common summer visitor, coming to us about the begin- ning of May and leaving again late in September. It breeds through- out the county, though rather sparingly. It is not infrequent in the Forest and in Wanstead Park, where "it used to be common about the avenues " (Buxton—47. 90), At Harwich it is "scarce," though it breeds (Kerry). Dartford Warbler: Melophilus undatus. A resident, but uncommon and very local, though it breeds in most of the southern counties, and even occasionally as far north as Sheffield. I am only aware of three occurrences in Essex, though careful search on some of our furze-covered commons might reveal the bird, as it is exceedingly shy and retiring in its habits. The Parsons Collection contains a male, shot on South Shoebury Common in Nov. 1837. Mr. Travis, in June, 1880, received for preser- DARTFORD WARBLER, 1/2. vation a specimen shot near Saffron Walden. Mr. Charles Smoothy shot a specimen, which is now in his collection, at Great Chesterford, on the Cambridge- shire border, on Dec. 5th, 1870. Mr. Harting (38. 17) gives no Essex localities. Gold-crest: Regulus cristatus. A resident throughout the county, though not common. Its numbers are often greatly increased in autumn by the arrival of flocks from elsewhere. Dr. Derham informed Albin (3. i. 98) that it built its nest " every year in fir-trees growing before his house at Upminster, in Essex, and that with great art, hanging them [s/e] under the branches in some thick obscure part thereof." Mr. Clarke says (24), it used to be " rather common round Walden," and on Oct. 9th, 1880, I saw many in gardens there, probably new arrivals. At Sudbury, Mr. Grubb says (39), it is " constantly with us." Mr. Buxton describes it (47. 91) as " com- gold-crest, 1/2. mon" [in Epping Forest] "throughout