Indigo Bunting (Passerina cyanea) Science Article 5
abstract
Recent years have seen the accumulation of many useful quan- titative and qualitative data pertaining to weight and fat in migratory birds. Most investigations of this nature have thus far dealt with birds breeding and overwintering on north temperate land masses, but few quantitative data pertaining to vernal weight and fat changes in birds of tropical regions are available
David W . Johnsto and Audrey C. Downer, Bird-banding 39:277-293