Slaty-backed Gull

• Sacramento, Colusa NWRs 2016 (50)
• Pt. Reyes National Seashore 2016 (100)
• Merced/San Luis NWRs 2017 (56)
• Pt. Reyes National Seashore 2015 (76)
• Sacramento NWR, et al. 2007 (95)
• Pt. Reyes NS 2014 (44)
• Bay Area Birds, etc. (390)
• Yuba Pass/Sierra Valley, June 2014 (73)
• South Texas 2014 (196)
• Smew, et al. (18)
• Yuba Pass/Sierra Valley, June 2011 (196)
• Yuba Pass/Sierra Valley, June 2013 (46)
• Ontario, Canada 2013 (88)
• Magee Marsh, Ohio — May 2013 (113)
• Pt. Reyes NS 2013 (19)
• Pt. Reyes NS 2012 (198)
• Palo Alto Baylands Preserve (61)
• Modoc Co. (16)
• Lesser Black-backed Gull (10)
• Slaty-backed Gull (16)
• Common Cuckoo (11)
• Yuba Pass/Sierra Valley, June 2012 (151)
• Arizona April/May 2012 (237)
• Falcated Duck, Colusa NWR 2011/2012 (28)
• Richmond Marina (63)
• Bodega Bay, California (43)
• Arizona, April 2011 (161)
• Ferry Point/Miller-Knox (138)
• Iceland Gull (24)
• Pt. Reyes NS 2011 (86)
• Sacramento, Colusa NWRs 2012 (62)
• Las Gallinas SP (51)
• Southern California 2012 (25)
• Pt. Reyes NS 2008 (69)
• Arizona, April 2010 (76)
• Pt. Reyes NS/Marin Co. 2010 (112)
• Merced/San Luis NWRs, Panoche Valley 2011 (111)
• Sacramento, Colusa NWRs 2011 (62)
• Yuba Pass/Sierra Valley, June 2010 (86)
• Joshua Tree NM & Vicinity (81)
• Albany Mudflats 2010 (88)
• Sacramento NWR, et al. 2010 (75)
• Merced/San Luis NWRs, Panoche Valley 2009, 2010 (59)
• Yuba Pass/Sierra Valley 2009 (118)
• Tilden Park (38)
• Southern California 2009 (48)
• Albany Mudflats 2009 (52)
• Sacramento NWR 2009 (51)
• Insects/Invertebrates (76)
• Albany Mudflats 2011 (8)
• Palo Alto Baylands 2009 (23)
• Pt. Reyes NS 2009 (17)
• Merced/San Luis NWRs 2008 (36)
• Sacramento NWR, et al. 2008 (41)
• In Box (0)