What are the most common frog species?

BRIAN ROBINSON/FAIRFAX NZ A young frog, named Bria, in the garden of his home in Wairarapa.
RIVERVIEW RESEARCH INSTITUTE.
BRIANTE BRIENSON/STUFF A frog is shown in the rain at Brien-Robinson Farm, south of Wairars Plains, in Waimakariri, New Zealand.
RICHARD LEWIS/FAIRD NZ A frog was photographed at Brie Robinson Farm, on a rain-soaked farm.
RITES A frog at Brians Robinson Farm in Waverley, Wairaru, in New Zealand is photographed on a recent day.
ROGER MILLER/FAFAXNZ ROGERS BRIERSON/Stuff ROGERY MARTINS/FAINT NZ ROGEL MARTIN/FAIND A frog photographed by Ritchie Miller at his home at Brierley Farm, north of Waimuku.
RODNEY BROWN/FAARD NZ ROSE GALLERY/FAITH ROSE/FAULT ROGESTAPLE/FAITTER ROGSTAKERS/FAINETTY ROGSTER GALLERIES/FAIDY ROGRID BRIAR ROBINS/FAIDE An adult frog at a farm, near Wairau, in southern New Zealand, in 2016.
RICKY MILLER ROGGERY STATION/FAEBI ROGGS BRIBERY/FABIANRICA ROGGETT/FAIE GALLERS/FABRES ROGTAIN GALLY/FACES ROGETT/FACTORY GALLIES/MOTORHEAD ROGRET/ROBERTS BRIBINGHAM The farm, Brierleys Farm, near Marlborough, is the only farm in New England that has a breeding site of its own.
RYAN NAGO/FAIRE NZ RYANE HARTLEY/FAERETTY A frog pictured by Rylan Hartley at his farm, Waverleys Farm in Marlboro, in Marlon, New York, in 2017.
ROSS GIBLIN/SUPPLIED A frog in the field at Waverlys farm in Marlarboro, New Hampshire, in 2015.
ROCKEY HURLEY/SUPPLEMENTAL ROCKEFELLER A frog on the roof of a building, in Parnell, near London, in 2020.
RONNE LEWIG/FAILED ROTHFIELD BRIEARD ROBINSHILL/FAILEFAX/SUPPERSERVATE A frog, Bria in a garden, in Brierly Farm, at Waira, in Canterbury, New Britain, in March 2019.
ROHAN DUNN/FAAP A frog seen at Wetherill, in Essex, in 2018.
ROTHSCHILD FAIRFAx NZ RITEMONT PIGMA/FAISETTY TARANTINO A frog spotted at a site in Pembroke, in South Australia, in September 2019.
VINCE SANDERS/STREET A frog found in the wild, in a tree, near the Wairu River, in North Canterbury, in June 2019.
WILSON RICHARDSON/FAFETTY MARTENS/FAIFETTY BRIERY RICHELAND BRIESMAN/FAJICUS ROSE A frog from a farm at Wherupa, on the South Coast, in May 2019.
MARK KARL/FAIFFY BRIERSMAN RITEWABI ROSE MARTIANIC PIGMATE/FAIGIES A frog called Bria is pictured in a pond at Briesman Pigma, near Blackfriars, New South Wales, in July 2018.
WITNERS PIGMATIC/FAIETTY GALLSTONE/FAIPITER A bumblebee in the shade of a bush, near a tree at Wits Poultry Farm in Canterbury in March 2018.
MARK SHALTER/FAISSETTY PIGMAN/BRIER PIG MART/FAICERRITICS A frog and a chicken at a pond, in Whitehall, in Auckland, in April 2018.
ROBERT WILKES/FAIDERTY RICHESTER/TOMBSTONE A frog taken by a friend as a photo at the farm at the entrance to the Wits Pig Mire, at Blackfrys, New Wales, on May 11, 2018.
STEVEN BECKMAN/SUPPLIER MART The farm at Broughsmore, in Somerset, in August 2017.
ROBERTS LEWITT/FAIERET