In the outback of Australia the right weather conditions cause the skies to darken, not with clouds but with masses of budgies. These wild relatives of the common pet parakeet respond to a boom in food brought on by heavy rains by reproducing into huge flocks. Millions of these little parrots flock together searching for seeds and water, concentrations denser that have been seen in forty years! Our photographer, Roland Seitre, was lucky enough to witness three of these population surges over the last few years. With masses of little birds come predators - falcons, crows and hawks hunt successfully among the crowded skies and around waterholes where their prey become waterlogged while slaking their thirst.