will chickens just wander off in the daytime? my 2 cochin roos, 2 barred rock hens, and 2 americaunas hens are missing. last seen around 7 last nite...couldnt find hide nor feather at around 11 last nite..and havent seen them today. 2 americauna hens went missing last week in broad daylight..all about 14 wks+ of age. very strange indeed.