Limited information is available about the role of this species in its ecosystem . Falco biarmicus> shares a niche with many other raptors, and competition between lanner falcons and peregrin falcons is high. Both feed primarily on small birds, however, F. biarmicus is able to adjust its diet accordingly if competition for this resource is too high. Lanner falcons are likely hosts to mites that commonly infest other birds; apart from this relationship, the main role of lanner falcons in an ecosystem is that of predators at the top of the food web.
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