Luke Massey / Peregrine falcon (Falco peregrinus) female, on balcony. Chicago, USA, May 2015.
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Luke Massey / Peregrine falcon (Falco peregrinus) female with eggs, in nest in planter on balcony, Chicago, USA
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Luke Massey / Peregrine falco (Falco peregrinus) male giving female food, Chicago, USA
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Luke Massey / Peregrine falcon (Falco peregrinus) female feeding chicks at nest, Chicago, USA
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Luke Massey / Peregrine falcon (Falco peregrinus) feeding chicks at nest with male flying by, Chicago, USA
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Luke Massey / Scientists ringing Peregrine falcon (Falco peregrinus) chicks, Chicago, USA
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Luke Massey / Peregrine falcon (Falco peregrinus) female feeding chicks at nest in balcony, Chicago, USA
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Luke Massey / Peregrine falcon (Falco peregrinus) returns to nest in balcony, Chicago, USA
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Luke Massey / Peregrine falcon (Falco peregrinus) female feeding chicks at nest on balcony, Chicago, USA
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Gary K. Smith / Washing drying outside Venetian waterside apartment, Venice, Italy, April.
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Stephen Dalton / House martins (Delichon urbicum) at communal nesting site under house balcony, Extremadura, Spain, April
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Constantinos Petrinos / Picturesque alley in Mykonos Town with white houses, green doors and red balconies decorated with the Greek flag bunting, Mykonos Island, Cyclades, Aegean Sea, Mediterranean, Greece, August 2007.
