Barry Mansell / Ornate chorus frog (Pseudacris ornata) brown and green colour phase, West Florida, USA

Doug Wechsler / Western chorus frog (Pseudacris triseriata kalmi) male calling, with vocal sac inflated. In vernal pool, Wharton State Forest, Western, USA. March

John Cancalosi / Pacific Chorus Frog (Pseudacris regilla) resting on leaves. This frog is known for its rasping vocalisation. Oregon, USA

Gerry Ellis / Pacific Tree Frog (Hyla regilla), Pacific Coast, North America

Gerry Ellis / Pacific Tree Frog (Hyla regilla), Pacific Coast, North America

Doug Wechsler / Western Chorus Frog {Pseudacris triseriata} male calling, Western, USA

Michael Durham / A three year old boy with a Pacific Treefrog (Pseudacris regilla)

Barry Mansell / Brimley's chorus frog (Pseudacris brimleyi) USA

Doug Wechsler / Pacific chorus frog {Pseudacris regilla} Baja California, Mexico

Doug Wechsler / Pacific chorus frog {Pseudacris regilla} two colour variations, Baja California, Mexico

Doug Wechsler / Western Chorus Frog male calling (Pseudacris triseriata) USA

Todd Pusser / Western / Upland Chorus frog {Pseudacris triseriata}, North Carolina, USA.