Alex Mustard / Brandt's cormorant (Phalacrocorax penicillatus) hunts for a meal in a school of Pacific chub mackerel (Scomber japonicus) beneath an oil rig. Eureka Rig, Los Angeles, California, USA, September

Alex Mustard / Brandt's cormorant (Phalacrocorax penicillatus) hunts for a meal in a school of Pacific chub mackerel (Scomber japonicus), beneath an oil rig. Eureka Rig, Los Angeles, California, United States of Ame...

Suzi Eszterhas / Brandt's Cormorant (Phalacrocorax penicillatus) pellet of worms coughed up by cormorant International Bird Rescue, Fairfield, California

Alex Mustard / Portrait of Townsend's fangblenny (Plagiotremus townsendi) on a coral reef. Gubal Island, Egypt. Strait Of Gubal, Gulf of Suez, Red Sea.

Suzi Eszterhas / Townsend's Chipmunk (Tamias townsendii) four week old orphaned baby being fed, Sarvey Wildlife Care Center, Arlington, Washington

Donald M. Jones / Townsend's Solitaire (Myadestes townsendi) calling, Troy, Montana

Alex Mustard / Brandt's cormorant (Phalacrocorax penicillatus) hunts for a meal in a school of Pacific chub mackerel (Scomber japonicus) beneath Eureka oil rig. Los Angeles, California, USA, Pacific Ocean, September

Alan Murphy/ BIA / Townsend's Warbler (Setophaga townsendi), British Columbia, Canada

Alan Murphy/ BIA / Townsend's Warbler (Setophaga townsendi), British Columbia, Canada

Alan Murphy/ BIA / Townsend's Warbler (Setophaga townsendi) calling, British Columbia, Canada

Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) emerging from cave, North Carolina

Alex Mustard / Brandt's cormorant (Phalacrocorax penicillatus) bursts through a school of Pacific chub mackerel (Scomber japonicus) while hunting beneath an oil rig. Ellen Rig, Los Angeles, California, United States...

Alex Mustard / Brandt's cormorant (Phalacrocorax penicillatus) swimming beneath an oil rig. Eureka Rig, Los Angeles, California, United States of America. North East Pacific Ocean.

Suzi Eszterhas / Brandt's cormorant (Phalacrocorax penicillatus) arriving with seaweed for nesting material, Point Lobos State Reserve, California, USA, May.

Suzi Eszterhas / Brandt's cormorant (Phalacrocorax penicillatus) chicks on nest, Point Lobos State Reserve, California, USA, May.

Suzi Eszterhas / Brandt's cormorant (Phalacrocorax penicillatus) courtship display, Point Lobos State Reserve, California, USA, May.

Suzi Eszterhas / Brandt's cormorant (Phalacrocorax penicillatus) colony, Point Lobos State Reserve, California, USA, May.

Suzi Eszterhas / Brandt's cormorant (Phalacrocorax penicillatus) courtship display, Point Lobos State Reserve, California, USA, May.

Suzi Eszterhas / Brandt's cormorant (Phalacrocorax penicillatus) nest colony, Point Lobos State Reserve, California, USA, May.

Suzi Eszterhas / Brandt's cormorant (Phalacrocorax penicillatus) nest colony, Point Lobos State Reserve, California, USA, May.

Alex Mustard / Brandt's cormorant (Phalacrocorax penicillatus) drowned after being tangled in fishing line beneath an oil rig. Ellen Rig, California, USA. North East Pacific Ocean. September 2015.

Claudio Contreras / Townsend's big-eared bat (Corynorhinus townsendii) roosting, Milpa Alta Forest, Mexico, September

Claudio Contreras / Townsend's big-eared bat (Corynorhinus townsendii) roosting, Milpa Alta Forest, Mexico, September

Claudio Contreras / Townsend's big-eared bat (Corynorhinus townsendii) roosting, Milpa Alta Forest, Mexico, September

Claudio Contreras / Townsend's big-eared bat (Corynorhinus townsendii) roosting, Milpa Alta Forest, Mexico, September

Claudio Contreras Koob / Townsend's big-eared bat (Corynorhinus townsendii) roosting, Milpa Alta forest, Mexico, September

Donald M. Jones / Townsend's Solitaire (Myadestes townsendi), western Montana

Donald M. Jones / Townsend's Solitaire (Myadestes townsendi), western Montana

Robert Royse / Townsend's Solitaire (Myadestes townsendi), New Mexico

Steven Kazlowski / Young toddler boy walking on snow-covered mountain summit, Mount Townsend, northwest Olympic National Park, Olympic Peninsula, Washington, USA. November 2013.

Steven Kazlowski / Woman hiker with tired puppy in a backpack, Mount Townsend, northwest Olympic National Park, Olympic Peninsula, Washington, USA. November 2013. Model released.

Steven Kazlowski / Tired puppy asleep in a backpack, Mount Townsend, northwest Olympic National Park, Olympic Peninsula, Washington, USA. November 2013

Steven Kazlowski / Woman hiker with tired puppy in a backpack, Mount Townsend, northwest Olympic National Park, Olympic Peninsula, Washington, USA. November 2013. Model released.

Michael Durham / Townsend's big-eared bat (Corynorhinus / Plecotus townsendii) flying out of cave at dusk, Derrick Cave complex, Central Oregon, USA, August.

Michael Durham / Townsend's big-eared bat (Corynorhinus townsendii) flying out of cave at dusk, Derrick Cave complex, Central Oregon, USA, August.

Michael Durham / Solitary male Townsend's big-eared bat (Corynorhinus townsendiii) roosting in an abandoned house, Central Oregon, USA, June.

Michael Durham / Biologist installing a motion sensor in the abandoned Smoking Dump gold mine to help scientists understand why sensitive bat species like Townsend big-eared bats (Corynorhinus townsendii) use the mine...

Donald M. Jones / Townsend's Solitaire (Myadestes townsendi), North America

Robert Royse / Townsend's Solitaire (Myadestes townsendi), New Mexico

Robert Royse / Townsend's Solitaire (Myadestes townsendi), New Mexico

Glenn Bartley / Townsend's Solitaire (Myadestes townsendi), British Columbia, Canada

Glenn Bartley / Townsend's Solitaire (Myadestes townsendi), British Columbia, Canada

Glenn Bartley / Townsend's Solitaire (Myadestes townsendi), British Columbia, Canada

Glenn Bartley / Townsend's Warbler (Setophaga townsendi), British Columbia, Canada

Glenn Bartley / Townsend's Warbler (Setophaga townsendi) male, British Columbia, Canada

Glenn Bartley / Townsend's Warbler (Setophaga townsendi) male, British Columbia, Canada

Glenn Bartley / Townsend's Warbler (Setophaga townsendi) male singing, British Columbia, Canada

Alan Murphy / Townsend's Solitaire (Myadestes townsendi), Los Alamos, New Mexico

Glenn Bartley / Townsend's Warbler (Setophaga townsendi) male, British Columbia, Canada

Glenn Bartley / Townsend's Warbler (Setophaga townsendi) male, British Columbia, Canada

Donald M. Jones / Townsend's Warbler (Setophaga townsendi) male calling, Troy, Montana

Donald M. Jones / Townsend's Warbler (Setophaga townsendi) male, Troy, Montana

Donald M. Jones / Townsend's Solitaire (Myadestes townsendi) perching on berries covered in snow, Troy, Montana

Donald M. Jones / Townsend's Solitaire (Myadestes townsendi) bperching on berries covered in snow, Troy, Montana

Donald M. Jones / Townsend's Solitaire (Myadestes townsendi) perching on berries covered in snow, Troy, Montana

Barry Mansell / Townsend's big-eared bat (Corynorhinus / Plecotus townsendii) roosting on tree, Arizona, USA

Kirkendall-Spring / Early morning light on a small lake near the town of Townsend, Georgia, November 2008

Florian Möllers / Simon Townsend, PhD student (University of St. Andrews) and field assistant Monday Gideon, Zarin Machanda, PhD student (Harvard University) and Senior field assistant Geresomu Muhumuza observing chimp...

Florian Möllers / Field assistant Monday Gideon and PhD student Simon Townsend (University of St. Andrews) observing Chimpanzees (Pan troglodytes schweinfurthii) grooming on rainforest road. Budongo Forest Reserve, Mas...

Florian Möllers / PhD student Simon Townsend (University of St. Andrews) and field assistant Monday Gideon observing Chimpanzees (Pan troglodytes schweinfurthii). Budongo Forest Reserve, Masindi, Uganda, Africa. Decemb...

Florian Möllers / Simon Townsend, PhD student (University of St. Andrews) and field assistant Monday Gideon logging data of voice recordings from female chimpanzees (Pan troglodytes schweinfurthii). Budongo Forest Rese...

Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) flying out of cave, Craters of the Moon National Monument, Oregon

Gerrit Vyn / Townsend's Warbler (Dendroica townsendi) male in breeding plumage, singing. Pend Oreille County, Washington, USA, May.

Gerrit Vyn / Townsend's Solitaire (Myadestes townsendi) perched on branch, Yakima County, Washington, USA, May.

Gerrit Vyn / Townsend's Chipmunk (Tamias townsendii) foraging in woodland, in spring. Pierce County, Rainer NP, Washington, USA, May.

Donald M. Jones / Townsend's Solitaire (Myadestes townsendi) perched on an snag, Troy, Montana

Donald M. Jones / Townsend's Solitaire (Myadestes townsendi) perched on a snag, Troy, Montana

Barry Mansell / Townsend's big-eared bat (Corynorhinus / Plecotus townsendii) in flight, Arizona, USA

Sebastian Kennerknecht / Townsend's Warbler (Setophaga townsendi) female, Wilder Ranch State Park, California

Donald M. Jones / Townsend's Solitaire (Myadestes townsendi) singing on Ponderosa Pine (Pinus ponderosa), western Montana

Donald M. Jones / Townsend's Warbler (Setophaga townsendi) male, western Montana

Donald M. Jones / Townsend's Warbler (Setophaga townsendi) male singing, western Montana

Donald M. Jones / Townsend's Warbler (Setophaga townsendi) male, western Montana

Konrad Wothe / Townsend's Chipmunk (Eutamias townsendii), Mount Rainier National Park, Washington

Konrad Wothe / Townsend's Chipmunk (Eutamias townsendii) feeding on grass seeds, Mount Rainier National Park, Washington

Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) flying in abandoned mercury sulfide mine, central Oregon

Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) pair flying in abandoned mercury sulfide mine, central Oregon

Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) flying in abandoned mercury sulfide mine, central Oregon

Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) roosting in an abandoned house, Oregon

Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) roosting in Gold Stake Mine, Coleville National Forest, Washington

Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) roosting in Gold Stake Mine, Coleville National Forest, Washington

Michael Durham / Blue Bottle Fly (Calliphoridae) lands on the pelage of a dead Townsend's Mole while another is already feeding. These flies are attracted to the odor of the decaying animal

Kirkendall-Spring / Point Wilson Lighthouse, Port Townsend, Washington, USA

Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) pursuing a Spanworm Moth, digital composite

Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) exits a cave in the Derrick Cave Complex, a series of lava tubes and lava bubbles, central Oregon

Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) pair exit a cave while a third flies in the background in the Derrick Cave Complex, a series of lava tubes and lava bubbles, dusk, central Oregon

Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) exits a cave in the Derrick Cave Complex, central Oregon

Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) exits a cave in the Derrick Cave complex, a series of lava tubes and lava bubbles, dusk, central Oregon

Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) exits a cave in the Derrick Cave Complex, a series of lava tubes and lava bubbles, central Oregon

Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) exits a cave in the Derrick Cave Complex, a series of lava tubes and lava bubbles, central Oregon

Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) flying at night, John Day Fossil Beds National Monument, Clarno Unit, Oregon

Michael Durham / Townsend's Big-eared Bat (Corynorhinus townsendii) male roosting on a rock, John Day Fossil Beds National Monument, Clarno Unit, Oregon

Rolf Nussbaumer / Townsend's solitaire {Myadestes townsendi} adult singing, Yellowstone NP, Wyoming, USA

Rolf Nussbaumer / Townsend's solitaire {Myadestes townsendi} adult on juniper tree, Yellowstone NP, Wyoming, USA

Donald M. Jones / Townsend's Solitaire (Myadestes townsendi) calling, Troy, Montana