Just lost the Cochin. Breaks my heart, she really was a pretty little thing. I dropped the OE at New Bolton Center for necropsy so at least I'll know if it was something contagious. Spoke to the doc today, She says they've seen a few cases of kidney failure from lack of water among chooks lower in the pecking order. I do have more than one water source in the Cochin coop, I can't imagine her not being able to get water.
Oh no Blarney! I am so sorry to hear you lost her too.