While I was outside in the back yard with them but apparently not paying enough attention - two of my 14 week old chickens got under the gate and out into the backlane. Someone walking by with a dog noticed them and managed to grab one - I heard the noise and came running... retrieved the one, but the other one ran under a neighbour's fence. I've looked in their yard, my yard and every yard within 3 houses but haven't found her. They've never left the yard before so I'm not sure if she can find her way back... I'm not sure if she's still hiding - it's been over an hour and no sign of her. I've been making the 'tsk, tsk' noise I do when I give her treats, and have told the neighbours I'm looking for a lost hen... Is there anything else I can do? What should I expect? Thanks, and please help!