Principal Sites Table

Total number of waterbirds at principal sites in the UK during five-year period 2011/2012 to 2015/16. Sites with five-year averages of >10,000 birds are listed.

Site

2011/12

2012/13

2013/14

2014/15

2015/16

Average

The Wash 294,609 350,031 393,260 343,932 345,366 345,440
Ribble Estuary 259,990 178,318 174,200 171,680 160,906 189,019
Morecambe Bay 201,581 191,056 181,689 171,968 183,770 186,013
Thames Estuary 152,161 179,961 194,525 173,331 141,064 168,208
Dee Estuary (England and Wales) 120,763 151,290 124,605 136,507 146,277 135,888
North Norfolk Coast 158,303 121,563 153,507 121,202 106,257 132,166
Solway Estuary 106,767 112,658 139,738 153,676 126,320 127,832
Humber Estuary 104,213 128,117 129,926 113,202 130,628 121,217
Somerset Levels 76,790 93,386 88,701 102,726 122,057 96,732
Breydon Water and Berney Marshes 91,014 96,523 88,857 91,413 114,626 96,487
Mersey Estuary 94,564 63,412 89,102 85,422 107,271 87,954
Montrose Basin 76,611 77,551 61,718 98,098 101,538 83,103
Severn Estuary 83,605 75,151 74,834 71,476 92,107 79,435
Ouse Washes 63,938 63,088 101,941 75,902 87,704 78,515
Blackwater Estuary 68,017 66,111 83,696 91,090 82,988 78,380
Alt Estuary 64,034 87,950 78,759 73,792 87,308 78,369
Forth Estuary 70,412 76,301 59,353 77,236 79,427 72,546
Strangford Lough 78,759 60,881 65,256 46,204 60,683 62,357
Hamford Water 41,404 63,372 62,228 52,570 46,142 53,143
Dengie Flats 49,715 45,021 55,842 46,460 62,344 51,876
Stour Estuary 50,276 44,520 48,566 52,699 54,283 50,069
Inner Moray and Beauly Firths 45,574 42,359 46,548 43,292 59,442 47,443
Swale Estuary 54,773 57,012 36,358 29,352 57,924 47,084
Chichester Harbour 47,769 41,661 47,518 50,207 42,210 45,873
Loughs Neagh and Beg 49,692 45,100 46,828 49,043 38,345 45,802
Loch of Strathbeg 39,635 39,589 29,411 73,013 43,837 45,097
Loch Leven 43,847 38,542 62,335 35,861 34,530 43,023
Burry Inlet 38,527 47,270 29,984 47,103 44,265 41,430
Lindisfarne 47,878 36,519 30,334 44,048 41,831 40,122
Cromarty Firth 38,240 38,110 34,493 36,296 43,310 38,090
West Water Reservoir 18,794 20,254 28,200 29,600 83,148 35,999
Abberton Reservoir 45,634 23,725 35,059 37,613 32,911 34,988
WWT Martin Mere 30,330 22,672 41,861 31,340 45,859 34,412
Loch of Skene 20,768 35,988 30,146 50,649 33,349 34,180
Lower Derwent Ings 38,105 29,914 27,911 34,686 35,647 33,253
Alde Estuary 32,994 31,011 32,988 36,646 25,774 31,883
Lough Foyle 26,917 32,437 34,309 31,106 32,672 31,488
Langstone Harbour 36,893 30,025 32,217 27,957 29,091 31,237
Colne Estuary 31,616 30,213 26,889 41,136 23,525 30,676
Dornoch Firth 36,874 25,925 24,639 30,383 22,383 28,041
Dungeness and Rye Bay 28,688 28,886 29,076 25,432 25,444 27,505
Carmarthen Bay 33,868 26,519 21,347 30,646 20,475 26,571
Crouch-Roach Estuary 26,087 22,881 24,595 29,958 24,311 25,566
Nene Washes 12,455 24,812 27,718 26,037 34,682 25,141
Medway Estuary 27,014 14,589 28,876 22,481 32,471 25,086
Rutland Water 33,633 16,539 28,702 18,537 22,521 23,986
Carsebreck and Rhynd Lochs 24,044 24,260 23,051 25,260 20,732 23,469
Orwell Estuary 21,377 22,155 25,283 26,121 22,249 23,437
Poole Harbour 21,662 23,272 22,807 24,673 21,264 22,736
Pegwell Bay 30,562 43,813 18,503 10,009 7,899 22,157
Exe Estuary 18,623 19,154 22,003 22,368 24,806 21,391
Duddon Estuary 21,292 18,723 19,028 25,395 19,473 20,782
Cleddau Estuary 26,494 17,902 20,833 16,414 20,904 20,509
Wigtown Bay 21,981 15,735 21,284 20,406 21,843 20,250
Tay Estuary 21,091 21,141 12,314 19,081 23,712 19,468
Tees Estuary 20,478 17,230 19,266 14,741 19,736 18,290
Deben Estuary 16,619 16,630 18,504 17,256 18,702 17,542
Lavan Sands 17,245 18,916 14,858 17,083 18,401 17,301
Beauly - - 16,950 - - 16,950
Belfast Lough 17,440 15,153 17,795 16,387 17,750 16,905
Pagham Harbour 16,136 19,417 18,355 13,136 15,537 16,516
Colwyn and Penrhyn Bays - - - 21,975 10,884 16,430
Cotswold Water Park 17,749 15,105 15,623 14,795 17,151 16,085
Inner Firth of Clyde 15,444 16,087 15,423 15,426 14,060 15,288
North West Solent 14,973 15,817 15,725 15,218 13,926 15,132
Eden Estuary 17,012 17,062 15,153 12,300 12,137 14,733
Taw-Torridge Estuary 14,490 13,371 13,984 15,635 14,524 14,401
Southampton Water 13,984 11,558 13,869 16,612 13,350 13,875
Slains Lochs (Meikle and Sand and Cotehill) 19,035 7,082 16,534 12,782 13,748 13,836
WWT Caerlaverock (Inland) 17,980 12,521 11,940 15,700 9,386 13,505
Mersehead RSPB Reserve 8,683 14,418 18,113 12,432 12,695 13,268
Ouse Fen and Pits (Hanson/RSPB) 16,205 12,098 19,810 9,765 8,098 13,195
Fleet and Wey 12,681 10,979 11,568 12,127 14,328 12,337
Arun Valley 10,582 10,232 11,880 12,192 13,117 11,601
Wedholme Flow 7,332 14,795 13,953 12,055 9,550 11,537
Portsmouth Harbour 13,775 10,625 12,514 13,868 6,480 11,452
Fen Drayton Lakes 8,112 11,694 16,450 8,782 11,549 11,317
Chew Valley Lake 14,020 7,924 13,234 9,456 11,674 11,262
Newtown Estuary 12,281 11,535 13,122 8,965 8,694 10,919
Ythan Estuary 13,939 9,912 12,505 8,914 8,586 10,771
Middle Yare Marshes 9,748 12,759 13,389 8,734 8,100 10,546
Otmoor 1,647 7,111 22,796 6,792 13,567 10,383
Camel Estuary 10,191 10,828 15,458 9,758 5,640 10,375
Ramornie Mill - 10,049 - - - 10,049