KELSEYVILLE, Calif. – Grebe photographs, handouts and notecards of Clear Lake’s famous Western and Clark’s grebes will be shown at the 19th annual Heron Days event Saturday, May 4, and Sunday, May 5.

Sponsored by the Redbud Audubon Society, Heron Days offers both birding boat tours and an Audubon nature education exhibit area.

The grebe display shows the courtship synchronized “dancing” of grebe pairs across the lake surface, colonies of floating nests, and baby grebes riding on a parent’s back.

Grebe notecards are available for sale at the Redbud Audubon exhibit, as are birding field guides and other nature books.

Tickets are still available for the unique 90-minute Audubon-guided pontoon boat birding tours that will be held on both Saturday and Sunday.

Saturday’s trips will leave from 8 a.m. to 3:15 p.m. from the boat launch docks at Lakeside County Park in Kelseyville. The boat tours will go north along the shoreline of Clear Lake to the heron rookery near Corinthian Bay.

On May 5, boats will leave during the same hours from the boat launch docks at Redbud Park in the City of Clearlake. The boat tours will visit Anderson Marsh where a variety of birdlife can be seen, including some nesting herons.

Each boat will have experienced Audubon guides to explain the birds viewed on the tours.

Boat tour tickets cost $20 per person and are available for online purchase at www.redbudaudubon.org or by calling 707-263-8030.