This report is the result of a cooperative effort by the Rocky Mountain Research Station and the USDA Forest Service Region 3, with participation by the Arizona Game and Fish Department and the Bureau of Land Management. It assesses the state of knowledge related to the conservation status of the cactus ferruginous pygmy-owl in Arizona. The population decline of this owl has been attributed to the loss of riparian areas before and after the turn of the 20th century. Currently, the cactus ferruginous pygmy-owl is chiefly found in southern Arizona in xeroriparian vegetation and wellstructured upland desertscrub. The primary threat to the remaining pygmy-owl population appears to be continued habitat loss due to residential development. Important information gaps exist and prevent a full understanding of the current population status of the owl and its conservation needs.

This guide covers all 110 of the world's species of tits, nuthatches and creepers. The Parulidae ("true" tits), Remizidae (penduline tits) and Aegithalidae (long-tailed tits) form the bulk of the book (78 species), with a further 24 species of nuthatch and eight creepers. The text covers each species under a number of headings: identification, sex and age, voice, distribution and movements, habitat, population, habits, breeding biology, description, movements, geographical variation, relationships, and references.

This book describes the biodiversity and biogeography of nothern Mexico, documents the biological importance of regional ecosystems and the impacts of human land use on the conservation status of plants and wildlife. It should become the standard source document for the conservation status of species and ecosystems in this region, which is of unusual biological interest because of its high biodiversity and highly varied landscape and biological zonation.

A chapter on Staphylinidae in a 1976 book on marine insects was the last general work on coastal rove beetles worldwide. Since then, phylogenetic studies on rove beetles have yielded a different perspective on that family, now with well over 50,000 species. Almost 400 species of them are now believed to be restricted to sea coasts. The detailed distribution and current classification of the coastal species are here documented in a review of the world literature accompanied by discussion and numerous color photographs of habitus and habitat.