Quote:
Fascinating! So either it's possible that cocci can exist in the intestines of chicks in the shell (wow!) or the brooder may have been contaminated from another source...airborne particles coming in the window, for example.
You've just switched this bird to new housing outdoors, and sometimes it takes a bird a while to adjust to new surroundings. Plus there's the heat to contend with. Heat makes birds sluggish and depresses their appetite.
If you kept this bird indoors previously, how could it have developed...