THE BIRDS OF HERTFORDSHIHE. 95 



129. Canada. Goose {Benu'cla cavadetisis). — This bird, which is 

 an introduced species, has occurred in this county on one occasion. 

 One was shot from a flock of about ten on 6th June, 1893, at 

 Cokeuach, near Hark way. 



130. ^yH00^KR Swan {i'ygnus mnsicus). — This bird was formerly 

 an occasional visitor to the Tring lleservoirs, but has not occurred 

 there in recent years. During the Aviuter of 1875-76 a pair of 

 these birds frequented a piece of water near Great Gaddesden, 

 and about the end of ])eccmber, 1892, thirty were seen flying over 

 Hertford, one beiug eventually shot at AVooilliall. 



131. Mute Swan [Cygnus olor). — This bird, which is kept on 

 many ornamcTital waters in the county, has probably never occurred 

 in a really wild state in Hertfordshire. 



132. Polish Swan {Ci/pius immutahilis). — This doubtful species 

 has visited the Tring Reseiwoirs on three occasions, viz., in 

 August, 1885, when one was shot, and in October, 1886, when 

 two were shot. The other time, for which no date is given, was 

 when nine arrived there and stayed some days. 



133. Sheldkake (Tadorna cornuta). — In 1883 Mr. Willshin shot 

 a specimen of this duck during Christmas week at Elstree 

 Reservoir, where another was seen in December, 1896. At Tring 

 a sheldrake was observed by the Hon. Walter Rothschild on 8th 

 January, 1888, and Street saw one tliere on lUth January, 1897. 



134. Mallard {Anas hoscas). — Resident and common, breeding 

 at Tring in large numbers. 



135. Gadwall {Anas sirepera). — The Rev. H. H. Crewe stated 

 that this duck occasionally occurred at Tring in former times. 



136. Shoveller {Spatula clypeata). — One or two pairs of this 

 duck nest regularly at or near the Tring Reservoirs, and it has 

 been shot on a few occasions in other parts of the county. 



137. Pintail {Bafila acuta). — This bird formerly occurred 

 occasionally at Tring, but in recent years only two examples have 

 been procured there. These were a male on 14th February, 1892, 

 and a female on 3rd October of the same year. The only other 

 record of this duck in Hertfordshire appears to be that of a bird 

 shot at Radwell, near Hitchin, in 1877. 



138. Teal {Querquedula erecca). — This duck occurs in small 

 parties nearly every year at Tring, and occasionally remains to 

 nest there. A nest found there on 25th April, 1887, together 

 with the parent bii'ds, is preserved in the Natural History Museum, 

 South Kensington. This bird has also been observed near Hitchin 

 during the nesting season, but no further evidence is at present 

 forthcoming that it nests there. 



139. North American Summer Duck {Aix sponsa). — An 

 individual of this semi-domesticated species was shot near Moor 

 Mill, St. Albans, in December, 1891. 



140. Garganey {Querquedula circia). — On 24th March, 1849, 

 four males and four females were observed at the Tring Reservoirs, 

 and some of them were eventually shot. In 1879 a garganey was 

 shot on Easter Day on a pond at Bennington. 



