It happens to me on a regular basis... tonight I have 24 in the coop - normally it is 30..... I am amazed at the fact that so many of my chickens survive outside at night with the predators here - I always count my babies at night, checking where I can for certain chickens who should be there... I call for those who are absent ... to no avail.. they always show up the next day.... despite the predators - thankfully they are always there in the mornings!
Suzie
Suzie