Mystery bird photographs

The answers is given below each photograph but you'll have to highlight between the dots with the mouse to see it.

Answer (highlight between the dots). Red-necked Grebe.

Photograph 2

Answer (highlight between the dots). Sabine's Gull.

Photograph 3

Answer (highlight between the dots). Red-rumped Swallow.

Photograph 4

Answer (highlight between the dots). Lesser Scaup.

Photograph 5

Answer (highlight between the dots). Jack Snipe.

Photograph 6

Answer (highlight between the dots). Long-tailed Skua.