12 ORNITHOLOGICAL RAMBLES. 



intersected by little fresh-water lakes, whose 

 swampy banks, clothed with reeds and rushes, 

 abound, during certain seasons, with many mi- 

 gratory birds of the grallatorial and natatorial 

 divisions. 



The principal rivers are the Arun, the Ouse, 

 the Cuckmere, and the Adur, all flowing into the 

 British Channel. 



The Arun rises in the forest of St. Leonard, in 

 western Sussex, crosses a considerable portion of 

 the weald, and passes through the Downs between 

 Bury Hill and Amberley, where, during the rainy 

 season, it overflows the low meadows in that 

 neighbourhood to the extent of many miles, so as 

 to resemble a great lake, and ultimately debouches 

 at Littlehampton. 



The Ouse and the Cuckmere rise in the forest 

 country, and enter the sea through the Downs to 

 the eastward of Brighton. The former passes 

 near Lewes, where it waters the flat, alluvial tract 

 of Lewes levels, and so on to Newhaven, on the 

 coast. The latter, still more to the eastward, 

 passing by Arlington, Alfriston and Littlington, 

 falls into the sea at Cuckmere haven, to the west- 

 ward of Beachy Head. 



The Adur, which also rises in St. Leonard's 

 Forest, enters the sea at Shoreham, about six 

 miles west of Brighton. Although the mouth of 



