Llun: 1
Voyage. Penarth to Flat Holm Arch Rock handling beach 1963

Beatrix, Dick and Ted Parry in Flat Holm. Lesser Black-Backed Gull colony
Enw rhywogaeth Mary: Lesser Black-backed Gull
Enw gwyddonol: Larus fuscus
Enw cyffredin: Lesser Black-backed Gull

Dyddiad: 1971

Llun: 2

Emptying birds died of botulism on beach. Flatholm 1983

Dyddiad: 1983

Llun: 3
Gull anomalies

Botulised birds. Paul Surtee, David Worrell Flatholm August 1983

Dyddiad: August 1983