Colour-ringed Great Black-backed Gulls
A three-year study of the feeding ecology of the Great Black-backed Gull Larus marinus during 1974-76 includes the colour-ringing of some 3,600 nestlings at breeding colonies in Orkney with a two-colour combination on the right leg. In summer 1974 1,200 were thus ringed, and the recoveries so far suggest dispersal predominantly down the east coast of Britain. All records of these colour-ringed birds are required; details should be sent to M, A. S. Beaman, Culterty Field Station, Newburgh, Aberdeenshire AB4 0AA.
Checklist of the birds of Gibraltar
A comprehensive checklist of the birds of Gibraltar is in preparation by the Gibraltar Ornithological Group. The list will include all species recorded on or from the Rock. Anyone having unpublished records for this area is requested to make these known to J. C, Finlayson, 1 Fraser's Ramp, Gibraltar, All contributions will be fully acknowledged.