The Tasman District Council is warning people in Richmond Hills to be cautious of nesting kārearea/NZ falcons, as they have been attacking walkers and cyclists. Several incidents have been reported, with one person having their hair pulled out. The council has located the nest and is monitoring it, but the area most at risk is the mountain bike track. Signs have been put up to warn people, and the council is advising walkers and cyclists to avoid the area until the end of January when nesting season is over. Falcons can fly at high speeds and catch prey larger than themselves.