Least Tern
this is a white and gray bird with black in the outer rectrices.it has small feet and a yellow and black billthis small bird has a white belly,white breast, white wings with black primaries, and yellow tarsus and feet.a medium sized bird with a yellow and black bill and a white billthis small bird is mostly white, but has a black head along with a sharp yellow beak.black and white headed bird with flat, bright yellow beak with a black end.a medium sized bird with a black crown, and a white breastthis small bird has a yellow beak with a black pointed tip.this white bird has a black crown and cheek patch along with a black tip at the end of its yellow bill.this bird is white and black in color, and has a yellow beak.this bird has a yellow and black bill, with a white breast.