A seabird explores its surroundings on while walking around a rock on a cliff in a seabird colony with the turquoise ocean in the background on Handa Island, Scotland

razorbill seabird guano handa island biodiversity crisis wildlife scotland sea cliff biodiversity flapping plumage environment sea plume cliff nature birds niche alca torda flap ecology rocks maritime alert avian flu shelf peeking ocean marine inaccessible watching climate change flying remote h5ni isolate wild aquatic fly extinction down breast ledge bird flu population feather black and white decline wings