The hen harrier: A 2015 survey estimates that 108 to 157 breeding pairs remain, an 8.7 per cent decline in confirmed and possible pairs since 2010. Photograph: Mike Brown

The twists, tumbles and turns of a hen harrier’s sky dance are a spectacle not everyone has been lucky enough to witness in recent times. Yet while it(...)

Peregrine falcon: their  populations are still recovering from devastating declines in the 1960s linked to DDT, a pesticide, which caused thin eggshells and breeding failure. Photograph: David McNicholas

The peregrine falcon, the fastest bird in the world, is making a slow and steady comeback in Ireland. This is the conclusion from a recent survey of p(...)