who described it first?
John White
Red wattlebird
The red wattlebird was first described as the wattled bee-eater by the Irish surgeon and naturalist John White in his "Journal of a Voyage to New South Wales", 
where can red wattlebird be found? Southeast Queensland, New South Wales, Victoria, South Australia and southwest Western Australia
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Red wattlebird [SEP] Taxonomy
The red wattlebird was first described as the wattled bee-eater by the Irish surgeon and naturalist John White in his "Journal of a Voyage to New South Wales", which was published in 1790. He wrote that it was the "size of a missel thrush, but much larger in proportion". The taxonomic descriptions in White's book are believed to have been written by the English naturalist George Shaw, who is generally credited as the author by subsequent authorities. The specific epithet, "carunculata", was introduced later in the same year by John Latham. The word is derived from "caruncula", Latin for 'a small piece of flesh'.