[Length 13 in. Wingspan 21 in.]

This Black Guillemot was photographed at Glouchester, MA, USA. Photo taken with a Nikkor 500mm f8.0 mirror lens on Ektachrome 800 film. (Date: February 1987)

[Length 13.5 in. Wingspan 23 in.]

This Pigeon Guillemot was photographed at Margo Dodd Park, Morro Bay, California, USA. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens + Nikkor TC17E II 1.7x Teleconverter on a Nikon D7000 camera. (Date: July 9, 2013)

[Length 13.5 in. Wingspan 23 in.]

This Pigeon Guillemot was photographed at Margo Dodd Park, Morro Bay, California, USA. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens + Nikkor TC17E II 1.7x Teleconverter on a Nikon D7000 camera. (Date: July 9, 2013)

[Length 20 to 25 in. Wingspan 59 to 71 in.]

Four species of Guineafowl are found across sub-Saharan Africa. Some species are found in open habitats such as savanna or semi-desert, while others occur in forests. Helmeted Guineafowl have been introduced into many countries (including the United States) to be raised as food or kept as pets. This captive (but obviously escaped) Helmeted Guineafowl was photographed at the Walmart Neighborhood Market, Weslaco, Texas. Photo taken with a 2.7mm lens on a LG Rumor Reflex S Smartphone. (Date: October 17, 2014)

[Length 20 to 25 in. Wingspan 59 to 71 in.]

This captive (but obviously escaped) Helmeted Guineafowl flock was photographed at the Walmart Neighborhood Market, Weslaco, Texas. Photo taken with a 2.7mm lens on a LG Rumor Reflex S Smartphone. (Date: October 17, 2014)

[Length 25 in. Wingspan 58 in.]

Herring Gulls occur throughout North America, Europe, and Asia. In North America they breed throughout much of Alaska, northern and eastern Canada, and the northeastern US. They winter across much of the US. This one was photographed on the rocks at Acadia National Park in Maine, USA. Photo taken with a 300mm f4.5 Nikkor ED lens on Kodachrome 64 film. (Date: July 1981)

[Length 25 in. Wingspan 58 in.]

This adult Herring Gull in flight was photographed at Montauk Point, New York, USA. Photo taken with a Nikkor 300mm EDAF f4.0 lens on Kodachrome 200 film. (Date: February 1995)

[Length 25 in. Wingspan 58 in.]

This Herring Gull chick was photographed at Sandy Hook, New Jersey, USA. Photo taken with a Soligor 300mm f5.6 lens on Ektachrome 200 film. (Date: August 1977)

[Length 16 in. Wingspan 40 in.]

This Black-headed Gull was photographed at Carrbridge, Scotland, Great Britain. Photo taken with a Nikkor 180mm EDAF-D f2.8 lens (EFL=270mm) on a Nikon D100 camera. (Date: June 20, 2004)