Task 3A Appendix 2 – Bird Species Information

Species Body Size Habitat(s) Diet Collection Locations Caspian tern L 21”; WS Occurs in coastal habitats and along rivers; Feeds exclusively on fish diving from above Napa Marsh, Brooks Sterna Caspia 50”; WT Forages in open waters and margins of and submerging or catching fish from waters Island, Cargill Pond A7 660g estuaries, embayments and rivers. Nests in surface. In SF Bay feeds largely on similar areas on island or other isolated habitat jacksmelt, anchovy, mudsucker, and various free from terrestrial predators. goby species. May forage in freshwater reservoirs surrounding SF Bay Forster’s tern L 13”; WS Occurs in similar habitat as Caspian tern Feeds similarly to Caspian tern and on same Napa Marsh, Hayward Sterna forsteri 31”; WT although rarely seen offshore. species although smaller sizes. Feeds almost Shoreline, Charleston 160g exclusively in SF Bay Slough, Pond A16 least L 9”; WS Forages in open water habitats on coast and Strictly piscivorous feeding mainly on Naval Air tern 20”; WT 42g interior of North America. Breeding occurs on anchovies, silversides, and surfperch Station Sterna isolated areas free from predation with no antillarum visual barriers to surroundings. brownii Brandt’s L 34”; WS Strictly coastal species, colony on Alcatraz is Feeds strictly on fish. diet is varied and Alcatraz cormorant 48”; WT furthest inland within CA. Breeds on isolated feeding habits are similar to Double-crested Phalacrocorax 2.1kg cliffs and outcroppings, sometimes with cormorant. penicillatus pelagic cormorants. Double-crested L 33”; WS During breeding season, the DCCO occurs on Strictly piscivorous, however, feeding on Horseshoe Lake, cormorant 52”; WT ponds, lakes, artificial impoundments, slow- aquatic macroinvertebrates has been Pelandini Ranch, Phalacrocorax 1.7kg moving rivers, lagoons, estuaries, and reported. Cormorants feed opportunistically Venice Cut, Wheeler auritus coastlines. Colonies are established at sites on fish that are most abundant. They Island, Napa Marsh, free from terrestrial predators and typically generally feed on slow moving schooling Richmond Bridge, Bay less than 10 km from preferred feeding areas. species ranging in size form 3-40 cm., Bridge Winters in similar habitats typically taking fish less than 15 cm. 250 species from greater than 60 families have been reported in the literature Great blue L 46”; WS On the Pacific coast the GBHE nests Partial piscivore, feeding mainly on fish; Prospect Slough, heron 72”; WT colonially from SE Alaska to Baja California. however, will also feed on amphibians, Prospect Island, Ardea herodias 2.4kg Generally found nesting in large trees that invertebrates, reptiles, mammals and birds. Deepwater Ship alleviate predation from terrestrial predators. The GBHE is known to forage in upland Channel, Davis, Stone Foraging habitat is varied, can often be seen fields and other terrestrial habitats. Lakes, Stockton using slow moving or calm freshwater bodies Deepwater Ship such as rivers and lakes; in coastal Channel, St. Francis environments often seen using estuarine and Yacht Club, Venice marine margins. Cut, Sand Mound Slough, , Middle River, , Horseshoe Lake, Sherman Lake, Wheeler Island Great egret L 39”; WS See great blue heron See great blue heron Stone Lakes, Davis, Ardea alba 51”; WT Pelandini Ranch, 870g Horseshoe Lake, Sherman Lake, Montezuma Slough, , , Black-crowned L 25”; WS Roosts colonially during the day and forages Feeds nocturnally in aquatic habitats mainly Davis, West Marin nightheron 44”; WT at night. Typically roosting and breeding on fish. Other aquatic species including Island, Redwood Nycticorax 870g habitats are found near to preferred foraging amphibians and invertebrates have been Shores, Alcatraz nyctticorax areas. Generally found in both roosting and reported. Is also known to feed on hatchlings nesting habitat under canopy of vegetative of other avian species locally. Will also habitat. forage on upland species when abundant. Snowy egret L 24”; WS Preferred breeding habitats include willows, Main foods taken include earthworms, Davis, West Marin Egretta thula 41”; WT eucalyptus and other large vegetation along annelid worms, aquatic and terrestrial Island, Hayward 360g rivers, irrigation channels, estuarine habitats, insects, crabs, shrimp, prawns, crayfish, Regional Shoreline, marshes, and islands. Generally occur in other crustaceans, snails, freshwater and Redwood Shores, mixed species colonies. Forages in similar marine fish, amphibians, and reptiles. Alcatraz areas including surrounding uplands. American L 18”; WS Forages in shallow, marshy or muddy ponds. Crustaceans, fish, insects, and seeds Hayward Shoreline, Avocet 31”; WT Breeds in open mudflats, marsh or beaches, Charleston Slough, Recurvirostra 315g usually near appropriate aquatic feeding Pond A16 Americana habitat.

Black-necked L 14”; WS Foraging and breeding habitat similar to Larvae, nymphs, and adults of many aquatic Hayward Shoreline, Stilt 29”; WT avocet insects esp. brine flies, also crayfish, small Baumberg Pond 10, Himantopus 160g fish, and seeds Moffett Field mexicanus Western snowy L 6.25”; WS In CA most breeding occurs on dune backed Terrestrial and aquatic invertebrates Pond A 22 (Alviso) plover 17”; WT 40g beaches, barrier beaches, and salt evaporators. Charadrius Winters on coastal beaches, tidal flats, lagoon alexandrinus margins, and salt evaporators. May winter nivosus inland on agricultural wastewater ponds. California L 14.5”; WS Tidally influences salt marsh habitat. Forages Forages on marine invertebrates taken from Wildcat Marsh, Corte clapper rail 19”; WT in slough channels and nests in Salicornia sp. the bottom and margins of tidal slough Madera Marsh Rallus 290g and Grendilia sp. Under canopy so as to channels. Main taxa taken are crustaceans longirostrus provide cover from predators and benthic polychaetes obsoletus