Ospreys returned again this year to nest at Alameda Point’s Seaplane Lagoon. But midway through the rearing process, the female became the sole provider and protector of her three chicks, after the male became entangled in fishing line. Such osprey single parenting is unheard of. The nest on an old Navy light stand at the entrance to the Seaplane Lagoon is familiar to the ospreys, having raised young here before. The crown of sticks has become part of the fixture, decorated by the ospreys with “arts and crafts” bits of fabric and string.