J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D Ducks, Geese, and Swans (Anatidae) New World Vultures (Cathartidae) Pigeons and Doves (Columbidae) Northern Shrike (PRE) Greater White-fronted Goose (DB) % Turkey Vulture (BDE) ) Rock Pigeon (ABCDEF) Vireos (Vireonidae) + Canada Goose (ABDE) Ospreys (Pandionidae) 0 Band-tailed Pigeon (ADEF) * Cassin's Vireo (ACDE) Mute Swan (PRE) # Osprey (ABDE) & Mourning Dove (ABDEF) 1 Hutton's Vireo (CD) * Wood Duck (ABD) Hawks, Kites, Eagles, & Allies (Accipitridae) Barn Owls (Tytonidae) ) Warbling Vireo (ACDEF) $ Gadwall (B) 9 White-tailed Kite (E) ) Barn Owl (ACE) 0 Jays & Crows (Corvidae) " American Wigeon (B) 2 Northern Harrier (EF) Typical Owls (Strigidae) 1 Steller's Jay (ACDF) $ Mallard (B) # Sharp-shinned Hawk (ADEF) Western Screech-Owl (D) # Western Scrub-jay (ABCDEF) Cinnamon Teal (B) ) Cooper's Hawk (ABDE) # Great Horned Owl (ACDF) ' American Crow (ACDF) ' Northern Shoveler (B) Northern Goshawk (B) Northern Pygmy-Owl (BCD) 2 Common Raven (ACEF) " Northern Pintail (B) 3 Red-shouldered Hawk (ABCD) Northern Saw-whet Owl (A) Swallows (Hirundinidae) " American Green-winged Teal (ABD) OspreysBroad-winged (Pandionidae) Hawk (B) Swifts (Apodidae) Purple Martin (BE) Hawks, Kites, Eagles (Accipitridae) 3 Canvasback (B) 0 Red-tailed Hawk (AED) ' Vaux's Swift (ABDE) 6 Tree Swallow (ABCDE) % Ring-necked Duck (B) ) Golden Eagle (ACDE) ) White-throated Swift (ABCDE) 3 Violet-green Swallow (ABCDE) Lesser Scaup (B) Rails, Gallinules, & Coots (Rallidae) Hummingbirds (Trochilidae) 0 N. Rough-winged Swallow (BC) Surf Scoter (PRE) Virginia Rail (B) 1 Anna's Hummingbird (CDEF) ' Cliff Swallow (ABDE) White-winged Scoter (PRE) Sora (B) Rufous Hummingbird (AD) 1 Barn Swallow (B) ( Bufflehead (B) ) Common Gallinule (B) " Selasphorus Hummingbird (D) Chickadees & Titmice (Paridae) 8 Common Goldeneye (ABCD) $ American Coot (B) % Allen's Hummingbird (BDE) 2 Chestnut-backed Chickadee (ACDF) 0 Hooded Merganser (B) Cranes (Gruidae) Kingfishers (Alcedinidae) 0 Oak Titmouse (ACDE) 1 Common Merganser (AB) Sandhill Crane (PRE) & Belted Kingfisher (BD) Bushtits (Aegithalidae) 1 Ruddy Duck (B) Lapwings & Plovers (Charadriidae) Woodpeckers & Allies (Picidae) ! Bushtit (D) New World Quail (Odontophoridae) Lesser Golden-Plover (D) Lewis's Woodpecker (BF) Nuthatches (Sittidae) & California Quail (ABCEF) Rails,1 Gallinules,Killdeer & Coots (Rallidae) (AB) ! Acorn Woodpecker (ABDEF) Red-breasted Nuthatch (ABCE) Grouse, Turkeys, (Phasianidae) Oystercatchers (Haemetopodidae) Red-naped Sapsucker (A) # White-breasted Nuthatch (AE) Wild Turkey (ADE) American Oystercatcher (A) " Red-breasted Sapsucker (ABCD) + Pygmy Nuthatch (ABD) Loons (Gaviidae) Stilts & Avocets (Recurvirostridae) # Nuttall's Woodpecker (ACDE) Creepers (Certhiidae) Red-throated Loon (B) American Avocet (PRE) $ Downy Woodpecker (ACDF) 0 Brown Creeper (AD) Common Loon (B) Sandpipers, Phalaropes (Scolopacidae) 3 Hairy Woodpecker (ACD) Wrens (Troglodytidae) Grebes (Podicipedidae) Cranes$ Spotted(Gruidae) Sandpiper (AB) # Northern Flicker (ABCDE) ' House Wren (ABCEF) ! Pied-billed Grebe (B) " Greater Yellowlegs (BD) Pileated Woodpecker (AB) 1 Pacific Wren (BD) Horned Grebe (B) Willet (PRE) Caracaras & Falcons (Falconidae) Marsh Wren (BD) Eared Grebe (B) OystercatchersWestern (Haemetopodidae) Sandpiper (PRE) $ American Kestrel (ABE) ) Bewick's Wren (ABCDEF) Western Grebe (B) Least Sandpiper (B) 2 Merlin (BDEF) Gnatcatchers & Gnatwrens (Polioptilidae) Cormorants (Phalacrocoracidae) Stilts andPectoral Avocets Sandpiper (Recurvirostridae) (PRE) ' Peregrine Falcon (ABDE) # Blue-gray Gnatcatcher (CDE) # Double-crested Cormorant (B) Sandpipers,Long-billed Phalaropes Dowitcher (Scolopacidae) (B) Tyrant Flycatchers (Tyrannidae) Kinglets (Regulidae) Pelicans (Pelecanidae) Wilson's Snipe (B) " Olive-sided Flycatcher (ACDE) & Golden-crowned Kinglet (ABCDF) Brown Pelican (B) Red-necked Phalarope (PRE) & Western Wood-Pewee (ADF) 0 Ruby-crowned Kinglet (ACDEF) Bitterns, Herons, & Allies (Ardeidae) Gulls, Terns, & Skimmers (Laridae) Willow Flycatcher (B) 5% Sylviid Warblers (Sylviidae) Bitterns, Herons, and Allies (Ardeidae) American Bittern (AB) + Ring-billed Gull (B) Dusky Flycatcher (PRE) # Wrentit (BCDEF) ) Great Blue Heron (BCEF) Western Gull (E) ! Pacific-slope Flycatcher (ABCDF) Thrushes (Turdidae) ! Great Egret (B) ' California Gull (ABDF) 0 Black Phoebe (AB) ) Western Bluebird (ACE) $ Snowy Egret (AB) Herring Gull (BD) ( Say's Phoebe (CDE) ! Swainson's Thrush (ACF) + Green Heron (B) Glaucous-winged Gull (BD) ! Ash-throated Flycatcher (ABCE) # Hermit Thrush (CD) ' Black-crowned Night-heron (B) ( Caspian Tern (B) 2 Western Kingbird (CE) ) American Robin (ACDEF) Ibises & Spoonbills (Threskiornithidae) $ Forster's Tern (BDF) Shrikes (Laniidae) % Varied Thrush (ADF) White-faced Ibis (B) " Loggerhead Shrike (ABE) Mockingbirds & Thrashers (Mimidae) " Northern Mockingbird (AE) J F M A M J J A S O N D J F M A M J J A S O N D ! California Thrasher (CDE) 2 Bullock's Oriole (AC) Trends are indicated as follows: ' Annual population growth of 10% per year or more. Starlings (Sturnidae) Baltimore Oriole (F) 1 though 9 Annual population growth by the percentage indicated. ! European Starling (ABF) Fringilline & Cardueline Finches & Allies 0 Steady state. ) through * Annual population loss by the percentage indicated. JASPER RIDGE Wagtails & Pipits (Motacillidae) # Purple Finch (CDE) " Population loss by 10% per year or more. American Pipit (PRE) # House Finch (ABDE) All rates of growth or loss are based upon 1989 thru 2012 transect data. Waxwings (Bombycillidae) Red Crossbill (D) Where no population trend is indicated, the number of individuals recorded BIOLOGICAL PRESERVE 1 Cedar Waxwing (ABDE) * Pine Siskin (ADE) is to small to make a meaningful projection. Silky-flycatchers (Ptilogonatidae) 0 Lesser Goldfinch (CDE) 3/28/2014/pdl Phainopepla (CE) Lawrence's Goldfinch (BD) Wood-Warblers (Parulidae) # American Goldfinch (ACDE) Northern Waterthrush (PRE) Old World Sparrows (Passeridae) BIRD LIST ! Orange-crowned Warbler (ABCDEF) House Sparrow (PRE) Nashville Warbler (CD) 2 Common Yellowthroat (B) NOTES: $ Yellow Warbler (ACDF) BASED ON TRANSECT DATA 1979-2012 This list is in ABA and AOU taxonomic order, December 2012. ! Yellow-rumped Warbler (ABCDEF) ! Black-throated Gray Warbler (CDEF) The data used in this bird list was gathered from 1979 through 2012 either in transects A through F as described below (starting in 1989) or for the & Townsend's Warbler (AD) Preserve as a whole for the first ten years. It represents the work of many 1 Hermit Warbler (ACD) individuals and much effort; all are hereby thanked profusely. 1 Wilson's Warbler (CF) The list indicates transects in which species have been observed the greatest Emberizids (Emberizidae) number of days. The thickness of the bar representing sightings of a species was determined by dividing the number of months the species was reported # Spotted Towhee (ABCDEF) by 33, representing the thirty-three years of the data used here. The thickest $ California Towhee (ADEF) bar represents sightings on 100% of the possible days while the thinest bar represents sightings on approximately 3% of the possible days. % Chipping Sparrow (ACDF) Vesper Sparrow (E) The transects are: (PRE) Where the recorded data predates assigned transects, (PRE) has been Lark Sparrow (E) used; in this case, the entire preserve was used to identify and record species. * Savannah Sparrow (BCE) (A) is in the northwest quadrant of the Preserve. It includes the areas 0 Fox Sparrow (CDEF) around the Sun Field Station, the large visitor's parking lot, the area below 5 Song Sparrow (ABC) the dam, and extending to the northwest edge of the Preserve. It includes limited open water at the base of the dam and a riparian corridor + Lincoln's Sparrow (ABCD) to the north of the dam to the road bridge. To the west of this zone, the land White-throated Sparrow (ABCF) is mostly open oak woodland, with limited open grassland. 0 White-crowned Sparrow (ABC) (B) is to the south of A. It includes the area of the main entry to ! Golden-crowned Sparrow (ACEF) Jasper Ridge as well as Searsville Lake and the site of the old town of Searsville. The transect includes open water, marshland at the head of the 2 Dark-eyed Junco (ADE) lake, some open oak woodland, and limited open grassland. Cardinals, Piranga Tanagers (Cardinalidae) (C) is south and east of B. It includes floodplain riparian habitat Summer Tanager (B) along with upslope grasslands, open woodland and limited chaparral to 1 Western Tanager (DE) the east. ) Black-headed Grosbeak (ACF) (D) follows the south side of San Francisquito Creek up to the ridge to the 2 Lazuli Bunting (BCE) south and east of the creek. The habitats include riparian, dense oak forest, open oak forest, and limited open grassland. Indigo Bunting (B) Blackbirds (Icteridae) (E) is the large area of open grasslands from the south edge of the Preserve to the edge of transect D. It includes, along its edge, oak forest, open oak 0 Red-winged Blackbird (AB) woodlands, and limited chaparral. ! Western Meadowlark (E) (F) is the remaining riparian area that has had minimal influence Rusty Blackbird (D) from the silting of Searsvilll Lake. It includes limited upslope grasslands and & Brewer's Blackbird (ADE) oak woodlands. ! Brown-headed Cowbird (ABDF) Hooded Oriole (AD)