Why You Find Birds in the Attic, Birds in the Garage, Birds in the House, Birds in the Soffit, Birds in the Yard. When birds go south for the winter or return they immediately focus on finding shelter. Some birds will often build a nest together, while some birds will build individual bird nests.
Birds have a much higher metabolic rate than humans. The average body temperature of a chicken is 41-45 degrees C, compared to a human's average body temperature of 37 degrees C. The pulse rate of a chicken can reach as high as 400 beats/min.
Perhaps the most important parameter is temperature â chicken eggs should be incubated at a temperature between 99 and 102 degrees Fahrenheit (99.5 is often considered to be ideal) and 50 to 65 percent relative humidity (60 percent is often considered the ideal).