Photo courtesy of the MNR - Of the adult female telling them that they were not welcomed during their visit to the nest box to collect the chicks for banding.
Notice that, although we have great photos like this one, we still have not been able to identify the band numbers on the female.
Note the unusual coloured band on her right leg, with a black and green band on her left leg.
(Photo taken by Emma Followes)
© Canadian Peregrine Foundation