Laurie Campbell / Golden eagle (Aquila chrysaetos) chick, one week, in eyrie showing egg-tooth on tip of bill, Argyll, Scotland, early May

Laurie Campbell / White-tailed sea eagle (Haliaeetus albicilla) chick in eyrie, Inner Hebrides, Scotland, May

Laurie Campbell / Golden eagle (Aquila chrysaetos) eyrie with female and two chicks, Lochaber, Scotland, June

Laurie Campbell / Golden eagle (Aquila chrysaetos) female with six week old eaglet at eyrie with body of sibling, Lochaber, Scotland, July

Laurie Campbell / Golden eagle (Aquila chrysaetos) male arriving at eyrie with food, Lochaber, Scotland, June

Laurie Campbell / Golden eagle (Aquila chrysaetos) carrying a sprig of rowan to refresh eyrie lining, Lochaber, Scotland, June

Laurie Campbell / Female Golden eagle (Aquila chrysaetos) at eyrie with two week old chick, Lochaber, Scotland, May

Gerrit Vyn / Adult female Rough-legged Buzzard / Hawk (Buteo lagopus) sitting on her nest. Seward Peninsula, Alaska, USA, June.

Gerrit Vyn / Adult female brown-morph Gyrfalcon (Falco rusticolus) brooding chicks on a nest. The nest was built in previous seasons by a Rough-legged Hawk and/or Common Raven. Seward Peninsula, Alaska, USA, May.

Gerrit Vyn / Adult female brown-morph Gyrfalcon (Falco rusticolus) brooding chicks on a nest. The nest was built in previous seasons by a Rough-legged Hawk and/or Common Raven. Seward Peninsula, Alaska, USA, May.

Dave Bevan / Peregrine falcon (Falco peregrinus) perched on rock ledge below cliff nest, Wales, UK, May