1. Central Valley Grasslands: California’s Highest Conservation Priority?

2. How are the birds associated with these CV habitats doing?

3. Data Sources for Avian Population Trends Christmas Bird Count (CBC)Christmas Bird Count (CBC) Over 2000 15-mile diameter circles across N. AmericaOver 2000 15-mile diameter circles across N. America More than 100 years of dataMore than 100 years of data

4. Data Sources for Avian Population Trends Christmas Bird Count (CBC) Over 2000 15-mile diameter circles across N. America More than 100 years of data Breeding Bird Survey (BBS)Breeding Bird Survey (BBS) Over 4100 25-mile roadside routesOver 4100 25-mile roadside routes More than 40 years of dataMore than 40 years of data

5. WATERBIRDS: waterfowl, shorebirds, herons, etc.

6. Swans, Geese and Dabbling Ducks GWF GooseWood DuckGadwall American WigeonMallard Cinnamon Teal Northern Shoveler Northern Pintail +++ ++- +++ - - - +++increasing trend, P<0.001 ++increasing trend, P<0.01 +increasing trend, P<0.05 - - -decreasing trend, P<0.001 - -decreasing trend, P<0.01 -decreasing trend, P<0.05 10 Species analyzed : Tundra Swan, Greater White-fronted Goose, Snow Goose, Ross’s Goose, Wood Duck, Mallard, Cinnamon Teal, Northern Shoveler, Northern Pintail, Green-winged Teal

7. Diving Ducks CanvasbackLesser ScaupBufflehead Hooded Merganser Common MerganserRuddy Duck +++ + 9 Species analyzed : Canvasback, Ring-necked Duck, Lesser Scaup, Bufflehead, Hooded Merganser, Common Merganser, Ruddy Duck

8. Trends from CV CBC data (1976-2010)

9. Shorebirds Black-necked StiltAmerican AvocetGreater YellowlegsDunlin Long-billed Dowitcher ++++++++++ 7 Species analyzed : Black-necked Stilt, American Avocet, Greater Yellowlegs, Long-billed Curlew, Dunlin, Least Sandpiper, Long-billed Dowitcher

10. Herons and other waterbirds American BitternGreat Egret Snowy EgretCattle Egret Black- crowned Night- Heron White- faced Ibis Eared Grebe American Coot - - -+++ +++++ + 12 Species analyzed : American Bittern, Great Blue Heron, Great Egret, Snowy Egret, Cattle Egret, Green Heron, Black-crowned Night-Heron, White-faced Ibis, Pied-billed Grebe, Eared Grebe, Western/Clark’s Grebe, American Coot

11. Trends from CV CBC data (1976-2010)

12. RIPARIAN/WOODLAND BIRDS

13. Riparian/Woodland Birds Red-shouldered Hawk Nuttall’s WoodpeckerHutton’s VireoBushtitBewick’s Wren ++++ - - - 21 Species analyzed : Red-shouldered Hawk, Cooper’s/Sharp-shinned Hawk, Nuttall’s Woodpecker, Downy Woodpecker, Northern Flicker, Hutton’s Vireo, Oak Titmouse, Bushtit, White-breasted Nuthatch, Bewick’s Wren, House Wren, Ruby-crowned Kinglet, Hermit Thrush, Yellow-rumped Warbler, Spotted Towhee, California Towhee, Fox Sparrow, Song Sparrow, Lincoln’s Sparrow, White-crowned Sparrow, Golden-crowned Sparrow House Wren Yellow-rumped WarblerCalifornia Towhee Lincoln’s Sparrow White-crowned Sparrow +++ - -

14. Trends from CV CBC data (1976-2010)

15. GRASSLAND BIRDS

16. Grassland Birds Ferruginous Hawk Rough- legged Hawk American Kestrel Prairie Falcon Loggerhead Shrike American Pipit Lark Sparrow Western Meadowlark +++- - - -- 14 Species analyzed : Ferruginous Hawk, Rough-legged Hawk, Golden Eagle, American Kestrel, Prairie Falcon, Killdeer, Say’s Phoebe, Loggerhead Shrike, Horned Lark, Western Bluebird, American Pipit, Lark Sparrow, Savannah Sparrow, Western Meadowlark

17. Trends from CV CBC data (1976-2010)

18. Trends from CV BBS data (1966-2006)

19. How important is the CV to the grassland species in decline?

20. Grassland Birds Ferruginous Hawk Rough- legged Hawk American Kestrel Prairie Falcon Loggerhead Shrike American Pipit Lark Sparrow Western Meadowlark +++- - - -- 14 Species analyzed : Ferruginous Hawk, Rough-legged Hawk, Golden Eagle, American Kestrel, Prairie Falcon, Killdeer, Say’s Phoebe, Loggerhead Shrike, Horned Lark, Western Bluebird, American Pipit, Lark Sparrow, Savannah Sparrow, Western Meadowlark

21. American Kestrel Zach Smith

22. CV = 6% of total

23. Prairie Falcon Phil Robertson

24. CV = 8% of total

25. Loggerhead Shrike P. LaTourrette

26. CV = 4% of total

27. American Pipit J. Ferrante

28. CV = 19% of total

29. Lark Sparrow T. Roach

30. CV = 27% of total

31. Western Meadowlark US FWS

32. CV = 36% of total

33. California’s Central Valley supports the highest abundance and diversity of wintering raptors in the country.

34. Highest Winter Raptor Abundance CBC# raptors 1Mad Island Marsh, TX879 2Benicia, CA735 3Lincoln, CA729 4Rio Cosumnes, CA655 5Sacramento, CA634

35. Highest Winter Raptor Abundance CBC# raptors 1Mad Island Marsh, TX879 2Benicia, CA735 3Lincoln, CA729 4Rio Cosumnes, CA655 5Sacramento, CA634 6Pt. Reyes, CA621 7Lacassine NWR, LA554 8Stockton, CA483 9Attwater NWR, TX477 10Cypress Crk, TX473 11Los Banos, CA424 12La Sal Vieja, TX419

36. Highest Winter Raptor Abundance

37. High Winter Raptor Species Richness Species/CircleRange CA Central Valley12.17.8 - 13.9 TX/LA Coastal Plain11.47.8 - 15.5