by Jack MacRae Most birds do their best to maintain a tidy nest.  Removing eggshells, stray feathers, and bits of food is serious business for avian parents.  And of course, there is loads of excrement. Some baby birds defecate every time they eat, up to 13 times a day.  Fortunately, nature provides disposable bags to help with housekeeping.  Fecal sacs are … Read more