. Number of species included is increased from 6300 to over 8700, about 85% of the world s birds

. Better data for many of the species included in the first edition an exhaustive compilation of new data published from 1992 through 2007

. More comprehensive coverage of Latin America, Japan, Taiwan, Southeast Asia, and more coverage of research published in non-English language journals

In 1992 the CRC Handbook of Avian Body Masses broke new ground by providing a compilation of body masses for 6300 species, about two-thirds of the world s...