Attract Purple Martins to your house by playing this video daily as loud as possible during the migration period. This is 10 hours of purple martin day time chatter. When played loudly from outdoor speakers or a boombox, any martin within hearing range will be lured in to investigate. Even if scouts have arrived, keep playing the recording to lure sub-adults to your housing so you can expand or start your colony. Sub-adults arrive at least two to four months after the adults arrive.
