ST. LOUIS, MO (KTVI) - During the most sweltering summer days, birders may worry "how do wild birds keep cool in summer?" Birds, however, are well adapted to hot climates, and they have both physical and behavioral characteristics that help them beat the heat.
Birds have a naturally higher body heat than many other creatures. While optimal temperatures vary for different species, the average bird has a body temperature of 105 degrees Fahrenheit (40 degrees Celsius). Furthermore, birds' high metabolic rate and active lifestyle generates even more body heat that must be controlled if the bird is to stay healthy.
More info: http://www.worldbirdsanctuary.org/