monogomous

Gull Larus wing anatomy to show the feathers and markings

Gull Larus head anatomy simplified diagram to help show structures of note

Gull Larus in flight anatomy simplified to show structures of note in this family of seabirds

Gull Larus body anatomy showing features to look out for when the bird is at rest

Pen and ink illustration of the Crested porcupine Hystrix cristata looking sideways at the viewer, cut to white

Red throated Diver Gavia stellata looking alert with red throat on show, showing striped head and sharp beak

Great Tit Parus major on a tree branch with grasses behind