Vocal Sacs Collection

Great frigatebird (Fregata minor) in tree with pair of Nazca boobies (Sula granti) showing mating behaviour, Genovesa Island, Galapagos

Sharp-nosed Reed Frog calling and Ethiopian Banana Frog (Afrixalus enseticola)
MM-7 Sharp-nosed Reed Frog calling and Ethiopian Banana Frog (Afrixalus enseticola) - interaction between different species Ethiopia - Africa Hyperolius nasutus Michele Menegon Please note that

Darjeeling bush frog (Raorchestes Annandalii) croaking, sitting on a petal, Kalimpong, West Bengal, India

RF- Pool Frog (Rana lessonae) sitting on white lily pad, Danube delta rewilding area, Romania

Northern spadefoot (Notaden melanoscaphus) adult male with vocal sac inflated, calling, Howard River sand flats, Northern Territory, Australia, January

Short-headed treefrog (Dendropsophus brevifrons) calling with inflated vocal sac. Above a rainforest pond at night, Yasuni National Park, Ecuador

European Tree Frog USH 329 Calling Hyla arborea © Duncan Usher / ardea. com
USH-329 European / Common TREEFROG - calling, with vocal sac inflated Distribution: Europe, W Asia Hyla arborea Duncan Usher Please note that prints are for personal display purposes only

Green Frog - with inflated vocal sacs - in garden pond - Provence - France
WAT-15384 Green Frog - with inflated vocal sacs - in garden pond Provence - France M. Watson Please note that prints are for personal display purposes only and may not be reproduced in anyway

Hyperolius nasutus
MM-6 Sharp-nosed Reed Frog - male in calling behaviour Western Highlands of Ethiopia - Africa Hyperolius nasutus Michele Menegon Please note that prints are for personal display purposes only

American Toad - Calling in Spring - Connecticut USA
JZ-3177 American Toad - Calling in Spring Connecticut USA Bufo americanus Jim Zipp Please note that prints are for personal display purposes only and may not be reproduced in anyway

Spring Peeper (Pseudacris crucifer) - Male calling to attract female -New York - USA - Quite small chorus frog - Seldom
CAN-3823 Spring Peeper - Male calling to attract female New York - USA Pseudacris crucifer John Cancalosi Please note that prints are for personal display purposes only

American Toad (Bufo americanus) - Male calling to attract female - New York - USA - "Hop toad" - Widespread
CAN-3782 American Toad - Male calling to attract female New York - USA Bufo americanus John Cancalosi Please note that prints are for personal display purposes only

Gray Tree Frog (Hyla versicolor) - Calling to attract mate - New York - USA
CAN-3777 Gray Tree Frog - Calling to attract mate New York - USA Hyla versicolor John Cancalosi Please note that prints are for personal display purposes only and may not be reproduced in anyway

Long Reed Frogs PS 9577 Males fighting for calling perch © Peter Steyn / ARDEA LONDON
PS-9577 Long Reed FROGS - x2 males, with inflated vocal sacs fight for calling perch on stem Peter Steyn Please note that prints are for personal display purposes only

Lake Frog - calling - Switzerland
MAR-641 Lake Frog - calling with vocal sac inflated Switzerland Rana ridibunda Thomas Marent Please note that prints are for personal display purposes only and may not be reproduced in any way

Stripeless Tree Frog - calling - France
MAR-636 Stripeless Tree Frog - calling with vocal sac inflated France Hyla meridionalis Thomas Marent Please note that prints are for personal display purposes only

Dainty Green Treefrog - Mossman - Queensland - Australia
MAR-608 Dainty Green Treefrog - with vocal sac inflated Mossman - Queensland - Australia Litoria gracilenta Thomas Marent Please note that prints are for personal display purposes only

Glass Frog - Manu National Park - 1800m - Peru
MAR-607 Glass Frog - with vocal sac inflated Manu National Park - 1800m - Peru Cochranella truebae Thomas Marent Please note that prints are for personal display purposes only

Siamang Gibbon - adult in tree calling, throat sac enlarged
LBO-1127 Siamang Gibbon - adult in tree calling, throat sac enlarged Symphalangus syndactylus Ian Beames Please note that prints are for personal display purposes only

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"Nature's Symphony: Vocal Sacs Unite Different Species in Ethiopia, France, and Beyond" In the lush landscapes of Ethiopia's African wilderness, a Great frigatebird perches on a tree branch alongside a pair of Nazca boobies. Amidst their diverse feathers and distinct calls, an unexpected harmony emerges as they share the same habitat. Meanwhile, in Provence, France, a Green Frog basks in a garden pond adorned with vibrant lily pads. Its vocal sacs swell with air as it joins its amphibian companions in creating an enchanting chorus that resonates through the tranquil surroundings. Venturing to Kalimpong, we encounter the Darjeeling bush frog. Perched delicately on petals and leaves alike, this tiny creature croaks with all its might while showcasing its inflated vocal sac. A testament to nature's beauty lies within these interactions between species. Further eastward along Romania's Danube delta rewilding area resides the RF-Pool Frog. Sitting gracefully atop a white lily pad amidst serene waters, this adult male proudly displays his inflated vocal sac while calling out for potential mates. Not far away in Australia's arid regions dwells the Northern spadefoot frog. With its vocal sac fully expanded and emitting deep resonating calls into the night sky, this remarkable amphibian seeks connection amidst vast desolation. Back across continents to South America's rainforests we go; here we find the Short-headed treefrog captivating us with its melodious call accompanied by an inflated vocal sac that pulsates rhythmically like nature's own heartbeat. Returning once more to Kalimpong where our journey began - there sits another Darjeeling bush frog upon a leafy perch. As it croaks persistently into the misty air surrounding it, its inflated vocal sac serves as both amplifier and symbol of resilience against adversity. From Africa to Europe and beyond - these snapshots from different corners of the world remind us of the universal language spoken by vocal sacs.