For animals like seabirds, a big part of the location could be non-genetic, as birds have different home roosts. I would add that there can be many local maxim

For animals like seabirds, a big part of the location could be non-genetic, as birds have different home roosts. I would add that there can be many local maxima, so it isnt always about finding less suitable homes. Birds of the same species can have different homes.