Figure 1.

Relation between treatment (‘C’: control, ‘PI’: public information, ‘LC’: location cues) and (a) the proportion of sites where prospecting black-throated blue warblers were detected in the post-breeding season of the treatment year, (b) the proportion of sites settled by males in the following spring and (c) the proportion of sites settled by females in the following spring. Error bars represent±1 s.e. Lower case letters represent results of multiple comparisons tests. Values below error bars indicate number of sites occupied. n=18 for each treatment.