Colony of Black Guillemots (Uria aalge) and Black-legged Kittiwakes (Rissa tridactyla), on the cliff of Troup Head, Scotland

larus tridactylus rissa tridactyla uria aalge natural reserve spring adult colony posing nest to overview piscivore scotland north sea cliff kittiwake rissa tridactyla rock shore biodiversity uria common guillemot uria aalge least concern rissa may nobody troup head nature reserve several species nature reserves nature reserve adults colonies posed pose settlings settling nesting nested overviews global sight global sights full length ichtyophage piscivores ichtyophagous cliffs kittiwakes larus tridactylus rocky coast rock shores rocky coasts rocky shore rocky shores biodiversities biological diversity biological diversities least concern species with nobody scotland troup head nature reserve different species environment protection environment management biodiversity management environment temperate season seasons atmosphere stage of development individual multitude group enumeration reproductive behaviour behavior shot diet pattern species great britain united kingdom european union europe north atlantic ocean atlantic ocean world sea and ocean landform earth's crust seagull sea bird bird wild animal strand area alcidae charadriiformes aves tetrapoda vertebrata chordata deuterostomia coelomata bilateria metazoa opisthokonta eukaryota guillemot low risk iucn) lr iucn red list of threatened species laridae