Kookaburra larger group known as "kingfishers", kookaburras are not closely associated with water. The genus "Dacelo" was introduced by the English zoologist William Elford Leach in 1815. The type species is the laughing kookaburra. The name "Dacelo" is an anagram of "Alcedo", the Latin word for a kingfisher. A molecular study published in 2017 found that the genus "Dacelo", as currently defined, is paraphyletic. The shovel-billed kookaburra in the monotypic genus "Clytoceyx" sits within "Dacelo". Four species of kookaburra can be found in Australia, New Guinea, and the Aru Islands. Kookaburras are sexually dimorphic. This is noticeable in the blue-winged and
The Australian Bird Guide Pearson from the "British Bird Guides" also reviewed the book and while he did mention the size of the book, overall he was also very enthusiastic about the guide. While the Chris Watson review was critical of the written bird sounds this review thought they had been done very well. Pearson was also critical that the birds full length (size range) was not provided rather it provides wing size, bill length and weight. Donna Lynn Schulman reviewed this Guide for "10,000 Birds" and at the same time compared this guide to the most popular existing Australian bird guides. The author