A brief documentary about the tiny island of Grassholm. Just off the coast of Wales, this is a popular location for the breeding of gannets. Thousands of them perch on the precarious rocks nesting in pairs before heading to sea - dive bombing the fish with speed generated by their six foot wingspan. There's some ceremonial "billing" - the mated pairs showing their affection, before they prepare for combat with some marauding seagulls who want not just their eggs, but also their regurgitated food too! It's a bit over-scored, but the informative narrative tells us plenty about the 6 week gestatio...