Alan Murphy / Savannah Sparrow (Passerculus sandwichensis), British Columbia, Canada

Nick Hawkins / Savannah sparrow (Passerculus sandwichensis) in flight, Anchorage Provincial Park, Grand Manan Island, New Brunswick, Canada, June.

Donald M. Jones / Savannah Sparrow (Passerculus sandwichensis) calling, Montana

Ingo Arndt / Savannah sparrow (Passerculus sandwichensis) in field of Nootka lupin (Lupinus nootkatensis) Alaska, USA, July.

Ingo Arndt / Savannah sparrow (Passerculus sandwichensis) in field of Nootka lupin (Lupinus nootkatensis) Alaska, USA, July.

Ingo Arndt / Savannah sparrow (Passerculus sandwichensis) in field of Nootka lupin (Lupinus nootkatensis) Alaska, USA, July.

Ingo Arndt / Savannah sparrow (Passerculus sandwichensis) in field of Nootka lupin (Lupinus nootkatensis) Alaska, USA, July.

Alan Murphy/ BIA / Savannah Sparrow (Passerculus sandwichensis), Texas

Alan Murphy/ BIA / Savannah Sparrow (Passerculus sandwichensis), Texas

Gerrit Vyn / Savannah Sparrow (Passerculus sandwichensis) Yukon Delta National Wildlife Refuge, Alaska, USA June

Scott Leslie / Savannah Sparrow (Passerculus sandwichensis), Maine

Scott Leslie / Savannah Sparrow (Passerculus sandwichensis), Maine

Scott Leslie / Savannah Sparrow (Passerculus sandwichensis), Maine

Donald M. Jones / Savannah Sparrow (Passerculus sandwichensis) at pond, western Montana

Donald M. Jones / Savannah Sparrow (Passerculus sandwichensis) at pond, western Montana

Donald M. Jones / Savannah Sparrow (Passerculus sandwichensis) in spring, western Montana

Gerrit Vyn / Savannah sparrow (Passerculus sandwichensis) nest and chicks. Yukon Delta National Wildlife Refuge, Alaska. June.

Claudio Contreras / Savannah sparrow (Passerculus sandwichensis) Xochimilco wetlands, Mexico, February

Claudio Contreras / Savannah sparrow (Passerculus sandwichensis) calling, El Vizcaino Biosphere Reserve, Baja Califonia Peninsula, Mexico, June

Claudio Contreras / Savannah sparrow (Passerculus sandwichensis) calling, El Vizcaino Biosphere Reserve, Baja Califonia Peninsula, Mexico, June

Donald M. Jones / Savannah Sparrow (Passerculus sandwichensis) male calling, western Montana

Robert Royse / Savannah Sparrow (Passerculus sandwichensis), Manitoba, Canada

Nick Saunders / Savannah Sparrow (Passerculus sandwichensis) singing, Saskatchewan, Canada

Robert Royse / Savannah Sparrow (Passerculus sandwichensis) singing, Manitoba, Canada

Robert Royse / Savannah Sparrow (Passerculus sandwichensis), Manitoba, Canada

Robert Royse / Savannah Sparrow (Passerculus sandwichensis), Ohio

Glenn Bartley / Savannah Sparrow (Passerculus sandwichensis), British Columbia, Canada

Matthew Studebaker / Savannah Sparrow (Passerculus sandwichensis) carrying insect food, Alaska

Matthew Studebaker / Savannah Sparrow (Passerculus sandwichensis), Ohio

Ingo Arndt / Savannah Sparrow (Passerculus sandwichensis) in field of Nootka Lupine (Lupinus nootkatensis), Alaska

Gerrit Vyn / Savannah sparrow (Passerculus sandwichensis) singing, Seward Peninsula, Alaska, USA May

Steve Gettle / Savannah Sparrow (Passerculus sandwichensis), Crane Creek State Park, Ohio

Gerrit Vyn / Adult "Ipswich" Savannah Sparrow (Passerculus sandwichensis) of the subspecies P. s. princeps. Ocean County, New Jersey, USA, January.

Donald M. Jones / Savannah Sparrow (Passerculus sandwichensis) perching on sage, central Montana

Jasper Doest / Savannah Sparrow (Passerculus sandwichensis), Vancouver, Canada

Jasper Doest / Savannah Sparrow (Passerculus sandwichensis), Vancouver, Canada

Donald M. Jones / Savannah Sparrow (Passerculus sandwichensis) singing on prairie, eastern Montana

Donald M. Jones / Savannah Sparrow (Passerculus sandwichensis) singing, western Montana

Donald M. Jones / Savannah Sparrow (Passerculus sandwichensis), western Montana

Donald M. Jones / Savannah Sparrow (Passerculus sandwichensis), western Montana

Jasper Doest / Savannah Sparrow (Passerculus sandwichensis), Vancouver, Canada

David Kjaer / Savannah Sparrow (Passerculus sandwichensis) perched, Texas, USA

Scott Leslie / Savannah Sparrow (Passerculus sandwichensis) portrait, Codroy Valley, Newfoundland and Labrador, Canada

Scott Leslie / Savannah Sparrow (Passerculus sandwichensis) portrait, Codroy Valley, Newfoundland and Labrador, Canada

Scott Leslie / Savannah Sparrow (Passerculus sandwichensis) on iris flowers, Codroy Valley, Newfoundland and Labrador, Canada

Tom Vezo / Savannah sparrow perched (Passerculus sandwichensis) Churchill, Alaska

Barry Mansell / Savannah sparrow {Passerculus sandwichensis} Florida, USA.

Tom Vezo / Savannah sparrow {Passerculus sandwichensis} Idaho, USA

Rolf Nussbaumer / Savannah sparrow bathing {Passerculus sandwichensis} Texas, USA

Tom Vezo / Savannah Sparrow (Passerculus sandwichensis) perched on grasses, singing, Nome, Alaska

Tom Vezo / Savannah sparrow singing. {Passerculus sandwichensis} Nome, Alaska, USA.

Donald M. Jones / Savannah Sparrow (Passerculus sandwichensis) calling, Montana

Donald M. Jones / Savannah Sparrow (Passerculus sandwichensis), Montana

Donald M. Jones / Savannah Sparrow (Passerculus sandwichensis), Montana

Tom Vezo / Savannah sparrow (Beldings race) {Passerculus sandwichensis} California USA

Steve Gettle / Savannah Sparrow (Passerculus sandwichensis), Newfoundland, Canada

Donald M. Jones / Savannah Sparrow (Passerculus sandwichensis), Montana

Donald M. Jones / Savannah Sparrow (Passerculus sandwichensis), Montana

Charlie Summers / A Brown-headed cowbird (Molothrus ater) chick, a brood parasite, begging to be fed from a Savannah sparrow (Passerculus sandwichensis), North Park, Colorado, USA.