Black Tern
a grey bird with a white belly and a black head and beakthis bird's body is dark grey-black, with a black head and pointed black bill.a medium sized bird with a black head,neck and throat, grey and white belly and white vent.this large bird has a long pointed bill, white undertail covers, and a gray body.a big gray bird with a black head and beak.this medium sized bird has a skinny black beak, large grey wings and a black belly.medium size bird with a black head and breast with gray body and long narrow beak.a gray and white bird with a black crown and a black beak.this bird is grey with black and has a long, pointy beak.this bird has wings that are black and has a long bill