Naturalized Parrots of the World

Naturalized Parrots of the World

Stephen Pruett-Jones (ed.)
Princeton University Press | 2021
304 pp. | 18.5 x 26.2 cm
Hardback | £35 / $45 | ISBN: 9780691204413 

As a group, the parrots (Psittaciformes) are highly threatened, with 16 species already extinct and 29% of the rest—118 of the 404 extant species recognised under BirdLife International taxonomy—now threatened with extinction, 20 of them in the highest threat category, Critically Endangered. Habitat loss, persecution of these (largely) seed predators as pests, and direct hunting of the birds for food, are some of the causes of decline, but the pet trade has been a major driver that has also led simultaneously to the establishment of exotic populations of a number of species, often far from their native range. This book is the first to provide a detailed overview of naturalised parrots, with half of the book focussing on distribution and ecology, and the other providing case studies. It is a welcome overview and point of entry into a fascinating subject. 

The first part of the book covers subjects of relevance like the parrot trade, distribution, genetics of established populations, parrot-human relations, conservation, ecological impacts, management and so on. These are well-compiled, very useful summaries, amply referenced and illustrated with numerous tables and graphics. There is plenty of good, hard information here about everything from population trends to economic impacts. Each chapter has been written by notable specialists in the topic at hand, and the chapters are individually well laid out, all including summary conclusions. The graphs and tables are generally helpful and display information at a glance. The figures at a global scale are, however, sometimes of insufficient size to adequately convey detail. For example, Fig. 2.1 on p. 30, which shows world distribution of naturalised parrots, is too small to feasibly show most Caribbean islands, including Puerto Rico, which harbours self-sustaining populations of at least eight species of exotic parrot. The same figure omits Venezuela, with its well-known urban populations of Rose-ringed Parakeet Psittacula krameri in Caracas. 

The case studies take up the second half of the book and either focus on species—Rose-ringed Parakeet and Monk Parakeet Myiopsitta monachus, the two most widespread—or geographic areas like the USA, Europe, the Hawaiian Islands, South Africa and Australia. Again, Rose-ringed Parakeet populations are not indicated in Venezuela, or even Puerto Rico (where first reported in 1979) or indeed anywhere else in the West Indies. These chapters are good primers those who wish to inform themselves about the real impacts of naturalised parrots, given the ongoing debates about whether such species should be controlled. There is plenty to absorb here and extensive reference sections are provided. 

This is a much needed compilation of information on the world’s naturalised parrots. Although aimed primarily at the ornithological and conservation community, there will be much here for the amateur enthusiast to enjoy. The care taken in the production, with high-quality paper and a pleasing design, does the content justice and makes this an ideal gift. A very worthwhile publication that will be a major reference for years to come.