Species

Status

Breeding

0002

Red-throated Diver

0003

Black-throated Diver

0004

Great Northern Diver

0007

Little Grebe

Occasional on Thames

0009

Great Crested Grebe

Regular on Thames

Has bred on Widbrook

0010

Red-necked Grebe

Once recorded near Boulters Lock

0011

Slavonian Grebe

0012

Black-necked Grebe

0022

Fulmar

Recorded once, over Thames, Sep 1989

0046

Manx Shearwater

Recorded once, over Widbrook during storms, 9 June 1970

0052

Storm Petrel

0055

Leach's Petrel

0071

Gannet

0072

Cormorant

Movement over Cookham between Marlow and Summerleaze roosts.

0080

Shag

Once Ray Mill Island.

0095

Bittern

Not recorded for 100 years

0104

Night Heron

0119

Little Egret

Once on Thames, Cockmarsh

0122

Grey Heron

Regular on Cockmarsh

0124

Purple Heron

Nearest record - White Waltham Sep 1861

0134

White Stork

0136

Glossy Ibis

0144

Spoonbill

One record - Cockmarsh May 11th 1969. An immature was at nearby SGP 10th Oct 1986

0152

Mute Swan

Up to 30 overwinter nr Widbrook

Usually 3 pairs (Widbrook, Strand Water, Odney)

0153

Bewick's Swan

Once on Widbrook - winter of 1962

0154

Whooper Swan

Group of 5 recorded in 1855.

0157

Bean Goose

Once on Cockmarsh

0158

Pink-footed Goose

0159

White-fronted Goose

Once on Cockmarsh 1986 - also feral individual

0161

Greylag Goose

Up to 100 feral birds

0162

Bar-headed Goose

Max 8 Switchback and Cockmarsh

0163

Snow Goose

Escaped individuals only

0166

Canada Goose

Large numbers (100+) Cockmarsh and Summerleaze GP (where over 1000 counted once in 1980's)

Just one or two pairs

0167

Barnacle Goose

Escapes only

0168

Brent Goose

Only record - 1 shot in winter of 1866/7

0169

Red-breasted Goose

One record - overflying individual 24th December 1981

0170

Egyptian Goose

Max 98 Switchback

0171

Ruddy Shelduck

0173

Shelduck

Occasional on Thames

0177

Wood Duck

1 SGP December 1984