sorry dont know about bunnies attracting bunnies (although i did once have to walk round my friends neihgbours with a cockrel whn she lost one of her chickens, incase he called her) i think i would set up a little area with a bowl of veges, hay, water and shelter and then continue looking for her. that way whilst you are searching she might go to the area and hide there instead.
have you checked the garden for holes? could she have dug anywhere perhaps?