Yeh, thats the plan - we've searched the communal garden area out the back - luckily his flat comes out into the garden and then other houses not onto the parking area/cul de sac so that is some small thing to be thankful for. I've shut my 2 in just in case they find the little one and scare it off.
Will ask if they have a pc/printer to do posters and make some up for them if not, theres plenty of places to put them round here and people are generally very nice.
And yes, within the last 2 hours, he came round when he saw our car get back from town.