About the photographer
Photographer Luke Massey visited Chicago’s peregrines with writer Katie Stacey in 2015.
“I look for wildlife everywhere I go, and if possible I'll take its photo or film it.
My passion is to show people what is on their doorstep or further afield, to show them something new or educate them about a species in decline.
If in my career I can help save one species I'll be happy, but for the moment I intend to try and help save as many as possible through my work,” says Luke.
See more fantastic wildlife photos by Luke Massey.
To view the images as a slideshow, click on the arrows in the top right hand corner of the photos below.