When walking west past this marsh, don't worry about aiming your binoculars in the general direction of the defense / industrial plant. Many birders have done so at all times of day, never with any problems.

The Lockheed Marsh offers a chance to see some of the pond specialties (ducks, waders, shorebirds) but also marsh birds (Harrier, both phoebes, Marsh Wren, sparrows, etc.). Peregrine Falcons appear regularly around the south bay, including here in late summer and autumn.

The lower San Francisco Bay has scores, if not hundreds, of eBird hot spots. This one is the westernmost one of a group of seven which are all convenient to the same parking area. Different kinds of habitat are to be found in this group: the smaller marsh near the WPCP plant itself; ponds and berms along Moffett Channel and surrounding the 3 ponds; the landfill hill; and the larger marshes behind the Lockheed and Yahoo properties.

When submitting eBird observations at Sunnyvale Water Pollution Control Plant (WPCP), it is most helpful to start a new checklist for each hotspot in the area. Use the general hotspot when you have a checklist that includes multiple locations or if no other hotspot or personal location is appropriate for your sightings.

The closest parking for all the Sunnyvale WPCP hotspots is on Carl Road View Map, 

The Sunnyvale Water Pollution Control Plant is an advanced wastewater treatment facility that serves the City of Sunnyvale and its surrounding areas. The plant was built in 1956 and is undergoing a 20-year improvement program to upgrade its infrastructure and technology. The plant uses a unique controlled-ponding system to remove pollutants from wastewater and produce recycled water and biosolids. The plant also utilizes biogas from its anaerobic digesters and the adjacent landfill to generate most of its energy needs. The plant aims to protect the environment and public health by meeting the standards set by the San Francisco Regional Water Quality Control Board.

To view this marsh, follow the trail west, between the landfill and the first pond. Continue west and the marsh will be on your left. The berms which divide the ponds, and trails over the landfill, provide miles of walking and birding. If you bird there, use the other nearby eBird hot spots for those locations.