The Irvine Ranch Conservancy is hosting a 24-hour “virtual bird watch,” beginning at 9 a.m., featuring a new migratory specimen each hour. A photograph and background information on the featured bird will be posted.

The bald eagle, Cassin’s kingbird, hooded oriole, Cooper’s hawk and great blue heron are among those to be highlighted.

With more than 150 migratory birds visit the nearly 40,000 acres overseen by the conservancy, the postings will include an explanation of where to look for each bird on conservancy turf.  Additionally, one of the featured bird posts will be accompanied by a sweepstakes entry opportunity to win binoculars, a conservancy hat and an Orange County bird-watching book. The social media event can be seen on Irvine Ranch Natural Landmarks’ Facebook, Instagram and Twitter pages.