Large flock of barnacle geese grazing in a field, lit by the evening light at Caerlaverock wetland centre South West Scotland

scotland caerlaverock wetland centre ornithology european natural nature wild colorful garden animal wildlife birds branch fauna birdwatching bird europe beautiful outdoor black shore waterfowl environment barnacle feather geese white grass farming conservation protective endangered wild animals flock flock of birds barnacle geese goose wild goose wild geese bird watching barnacle goose branta leucopsis