Alcatraz Island

Recent Visits

Checklists submitted within the last hour are not shown.
Observer Date Species
Natural Resources 18 Oct 2019 20
Elizabeth Crouthamel 10 Oct 2019 12
Lana Love 4 Oct 2019 4
Lynne Parks 2 Oct 2019 13
Chris Siron 2 Oct 2019 13
Natural Resources 1 Oct 2019 21
Natural Resources 1 Oct 2019 21
Pat Wong 1 Oct 2019 21
Stephany McNew 25 Sep 2019 3
Matt Debelak 25 Sep 2019 3
More Recent Visits...

Top eBirders

Updated 10 sec ago.
1 Natural Resources
139
2 Pat Wong
46
3 Robert Blumberg
44
3 David Assmann
44
5 Wen Hsu
43
6 Karen Vandergrift
42
7 logan kahle
39
8 Pauline Yeckley
37
9 Erica Harris
35
10 Teri Wills
33

171 Species 584 Checklists

Updated 10 sec ago.
Species Name Count Date By
1 Western Grebe 2 18 Oct 2019 Natural Resources
2 Rock Pigeon 5 18 Oct 2019 Natural Resources
3 Anna's Hummingbird 26 18 Oct 2019 Natural Resources
4 Black Oystercatcher 2 18 Oct 2019 Natural Resources
5 Black Turnstone 2 18 Oct 2019 Natural Resources
6 Western Gull 88 18 Oct 2019 Natural Resources
7 Brandt's Cormorant 246 18 Oct 2019 Natural Resources
8 Double-crested Cormorant 17 18 Oct 2019 Natural Resources
9 Brown Pelican 14 18 Oct 2019 Natural Resources
10 Peregrine Falcon 1 18 Oct 2019 Natural Resources
11 Black Phoebe 7 18 Oct 2019 Natural Resources
12 American Crow 1 18 Oct 2019 Natural Resources
13 European Starling 13 18 Oct 2019 Natural Resources
14 House Finch 13 18 Oct 2019 Natural Resources
15 Fox Sparrow 4 18 Oct 2019 Natural Resources
16 White-crowned Sparrow 9 18 Oct 2019 Natural Resources
17 Golden-crowned Sparrow 4 18 Oct 2019 Natural Resources
18 Song Sparrow 20 18 Oct 2019 Natural Resources
19 Yellow-rumped Warbler 36 18 Oct 2019 Natural Resources
20 Wilson's Warbler 1 18 Oct 2019 Natural Resources
21 American White Pelican 6 10 Oct 2019 Elizabeth Crouthamel P
 
22 Chestnut-backed Chickadee 1 10 Oct 2019 Elizabeth Crouthamel
sparrow sp. 1 10 Oct 2019 Elizabeth Crouthamel
23 Elegant Tern 5 2 Oct 2019 Lynne Parks
24 Pelagic Cormorant 1 2 Oct 2019 Lynne Parks
cormorant sp. 10 2 Oct 2019 Lynne Parks
25 House Sparrow 3 2 Oct 2019 Lynne Parks
tern sp. 50 1 Oct 2019 Natural Resources
26 Great Egret 1 1 Oct 2019 Natural Resources
27 Say's Phoebe 1 1 Oct 2019 Natural Resources
28 Common Raven 2 1 Oct 2019 Natural Resources
wren sp. 1 1 Oct 2019 Natural Resources
29 Black-throated Gray Warbler 1 25 Sep 2019 Stephany McNew
30 California Gull 1 12 Sep 2019 BB Oros
31 Black-crowned Night-Heron 2 12 Sep 2019 BB Oros N
 
gull sp. 1 29 Aug 2019 Maureen Geiger
32 Great Blue Heron 1 27 Aug 2019 Aris Vouros P
 
33 Snowy Egret 2 27 Aug 2019 Aris Vouros P
 
34 Pigeon Guillemot 8 19 Aug 2019 Richard Hasegawa
35 Heermann's Gull 2 19 Aug 2019 Richard Hasegawa
36 Belted Kingfisher 1 19 Aug 2019 Richard Hasegawa
37 Canada Goose 1 21 Jul 2019 Trevor Bakker
38 Barn Swallow 1 21 Jul 2019 Antal Szijj
39 Common Murre 1 30 Jun 2019 Duncan Fraser
40 Mallard 1 25 Jun 2019 Charles Fisher
41 Clark's Grebe 2 25 Jun 2019 Charles Fisher
42 Allen's Hummingbird 1 25 Jun 2019 Charles Fisher
43 Caspian Tern 1 25 Jun 2019 Charles Fisher
44 Brown-headed Cowbird 1 21 Jun 2019 Sabrina Wiser
45 Turkey Vulture 1 13 Jun 2019 Kurt Roblek
46 Forster's Tern 2 11 Jun 2019 Ronan Nicholson N
 
47 Brewer's Blackbird 1 11 Jun 2019 Ronan Nicholson
48 Ring-billed Gull 1 4 Jun 2019 Larry Siemens
49 Violet-green Swallow 2 4 Jun 2019 Larry Siemens
50 Glaucous-winged Gull 3 1 May 2019 Daniel Weller
loon sp. 1 1 May 2019 John Cooper
Western/Clark's Grebe 1 18 Apr 2019 Erica Harris
51 Eurasian Collared-Dove 15 15 Apr 2019 Aidan Kiley
52 Red-throated Loon 1 15 Apr 2019 Aidan Kiley
53 Pacific Loon 1 1 Apr 2019 Kate Edwards N
 
crow/raven sp. X 1 Apr 2019 Kate Edwards
54 Green Heron 1 14 Mar 2019 Karen Trost
hummingbird sp. 2 9 Mar 2019 Patricia Lavoie
55 Bufflehead 1 22 Feb 2019 Jeff Zuhlke
56 Herring Gull 3 22 Feb 2019 Krishna Murti
57 Hermit Thrush 1 19 Feb 2019 phoebe gordon
58 Northern Pintail 26 1 Dec 2018 Natural Resources P
 
59 Spotted Sandpiper 1 1 Dec 2018 Natural Resources
60 Mew Gull 6 1 Dec 2018 Natural Resources
61 Red-shouldered Hawk 1 1 Dec 2018 Natural Resources
62 Townsend's Warbler 2 1 Dec 2018 Natural Resources
63 Ruby-crowned Kinglet 1 1 Dec 2018 David Assmann
64 Steller's Jay 2 29 Oct 2018 W. Dwayne DelGrande
65 Bushtit 1 29 Oct 2018 W. Dwayne DelGrande
66 Golden-crowned Kinglet 1 29 Oct 2018 W. Dwayne DelGrande
67 Pacific Wren 1 29 Oct 2018 W. Dwayne DelGrande
68 House Wren 1 18 Oct 2018 Natural Resources
69 Willow Flycatcher 1 1 Oct 2018 Natural Resources N
 
70 Warbling Vireo 1 1 Oct 2018 Natural Resources
71 Orange-crowned Warbler 1 1 Oct 2018 Natural Resources
72 American Robin 2 8 Sep 2018 Chris Byers
73 California Towhee 1 28 Jul 2018 Dorothy Grecco
74 Osprey 1 22 Jun 2018 Laura Wilson
75 Wrentit 1 22 Jun 2018 Laura Wilson
76 Bewick's Wren 1 28 May 2018 Brian & Robin Lindman
77 Common Loon 1 10 Apr 2018 Steve Joyce
78 Surf Scoter 2 16 Dec 2017 Weston Smith
79 Pomarine Jaeger 2 22 Nov 2017 Taylor Michael
80 Marbled Murrelet 1 22 Nov 2017 Taylor Michael
81 Wandering Tattler 1 6 Nov 2017 Natural Resources
82 Lincoln's Sparrow 1 6 Nov 2017 Natural Resources
83 Surfbird 1 21 Oct 2017 Tim Shelmerdine
84 Northern Mockingbird 1 10 Oct 2017 Natural Resources
85 Common Tern 2 12 Sep 2017 Newton st Loe Birding
86 Pied-billed Grebe 1 25 Aug 2017 Vikki Jones
87 Mourning Dove 2 14 Jun 2017 Teri Wills
Larus sp. 60 17 May 2017 Fernando del Valle
88 Red-tailed Hawk 1 3 Dec 2016 Prashanth N S N
 
89 White-throated Sparrow 1 23 Nov 2016 Shawn Sullivan
90 Purple Finch 2 27 Oct 2016 Nancy Oborne
91 Broad-winged Hawk 1 12 Oct 2016 Karen Vandergrift N
 
92 White-throated Swift 3 25 Apr 2016 Dominique Roche
93 Cackling Goose 1 5 Feb 2016 Karen Vandergrift
94 Dark-eyed Junco 4 5 Feb 2016 Sherree Sheide
95 Western Meadowlark 1 23 Nov 2015 Natural Resources
96 Brown Booby 1 28 Oct 2015 Natural Resources P
 
pigeon/dove sp. 3 24 Jul 2015 stephen covey
97 Cooper's Hawk 1 2 Jul 2015 John Hurd
House/Purple Finch 3 25 Jun 2015 Bruce King
98 Great-tailed Grackle 2 22 Jun 2015 Clément Berthelot
99 Least Sandpiper 5 18 Jun 2015 Connor Cochrane
100 Northern Gannet 1 12 Jun 2015 Michael Pierson N
 
101 Blue-gray Gnatcatcher 1 12 Jun 2015 Michael Pierson N
 
102 Bullock's Oriole 1 5 Jun 2015 Mary McMahon P
 
103 American Coot 8 4 Jun 2015 Kyle Pardee
104 Black Skimmer 1 25 Mar 2015 Gretchen Tremoulet N
 
105 Horned Grebe 1 31 Jan 2015 Eddie Bartley
106 Common Yellowthroat 1 31 Jan 2015 Eddie Bartley
Western x Glaucous-winged Gull (hybrid) 2 25 Jan 2015 logan kahle
Herring x Glaucous-winged Gull (hybrid) 3 25 Jan 2015 logan kahle
107 Brant 6 8 Jan 2015 Natural Resources N
 
Greater/Lesser Scaup 1 8 Jan 2015 Natural Resources
108 Red-breasted Merganser 2 2 Jan 2015 Adrian Johnson
109 Eared Grebe 1 2 Jan 2015 Adrian Johnson
110 Iceland Gull 1 2 Jan 2015 Adrian Johnson
111 Greater Scaup 12 28 Dec 2014 Matthew Fuirst
112 Black-necked Stilt 2 28 Dec 2014 Matthew Fuirst
113 American Avocet 2 28 Dec 2014 Matthew Fuirst
114 Red-masked Parakeet 14 28 Dec 2014 Matthew Fuirst
115 Varied Thrush 1 13 Dec 2014 Natural Resources
116 Ancient Murrelet 1 6 Dec 2014 Natural Resources
117 Bonaparte's Gull 10 5 Dec 2014 Natural Resources N
 
118 Whimbrel 1 4 Oct 2014 Velma Knowles
119 White-faced Ibis 12 28 Sep 2014 EM Ganin N
 
120 Hutton's Vireo 1 6 Jun 2014 C Whittle
121 California Scrub-Jay 3 6 Jun 2014 C Whittle
122 Tree Swallow 3 6 Jun 2014 C Whittle
123 Red-breasted Nuthatch 2 6 Jun 2014 C Whittle
124 Spotted Towhee 3 6 Jun 2014 C Whittle
125 Savannah Sparrow 2 23 Mar 2014 Lorianne Rios
126 Swainson's Hawk 1 22 Nov 2013 Natural Resources N
 
127 White-winged Scoter 1 21 Nov 2013 Natural Resources
128 Northern Harrier 1 21 Nov 2013 Natural Resources
Rufous/Allen's Hummingbird 1 24 Sep 2013 stephen carter
129 Band-tailed Pigeon 5 23 Sep 2013 stephen carter
130 Pine Siskin 2 23 Sep 2013 stephen carter
131 Yellow Warbler 3 23 Sep 2013 stephen carter
132 Ruddy Duck 1 3 Aug 2013 Deven Kammerichs-Berke
133 Lesser Goldfinch 1 29 Jun 2013 Mark Arvin
134 American Goldfinch X 15 Nov 2012 Candy McNamee
135 Tufted Puffin 1 15 Jun 2011 kenneth lipshy
136 Northern Flicker 2 10 Dec 2010 Alex Stark
137 Barn Owl 2 31 Oct 2010 Marie Cerda
138 Merlin 1 26 Oct 2010 Natural Resources
139 Pacific-slope Flycatcher 1 23 Sep 2010 Anonymous eBirder
140 Red-necked Phalarope X 26 May 2010 Mark & Barbara Hoffman
141 Ashy Storm-Petrel X 26 May 2010 Mark & Barbara Hoffman
142 Northern Rough-winged Swallow X 26 May 2010 Mark & Barbara Hoffman
143 Cliff Swallow X 26 May 2010 Mark & Barbara Hoffman
144 Marsh Wren X 26 May 2010 Mark & Barbara Hoffman
145 Western Kingbird 1 13 May 2010 Richard Horrigan
146 Bald Eagle 1 26 Apr 2010 Marbry Hopkins N
 
147 Black-bellied Plover 10 2 Apr 2010 Simon Harvey
148 Greater Yellowlegs 12 2 Apr 2010 Simon Harvey
149 Willet 10 2 Apr 2010 Simon Harvey
150 Olive-sided Flycatcher 1 6 Jun 2009 logan kahle
151 Sharp-shinned Hawk 1 7 Oct 2008 Natural Resources
152 Sabine's Gull 1 23 Sep 2008 Markus Craig N
 
153 Parasitic Jaeger 1 26 Aug 2008 Puneet Dhillon
154 Common Goldeneye 1 6 Jan 2008 Natural Resources
155 Nashville Warbler 1 26 Oct 2007 Natural Resources
156 Rock Wren X 8 Feb 2007 Robert Lewis N
 
157 Red-necked Grebe 1 3 Jan 2007 Natural Resources
158 Cedar Waxwing 1 24 Oct 2006 Natural Resources N
 
159 Burrowing Owl 1 31 Jan 2006 Natural Resources N
 
160 Ruddy Turnstone 3 21 Nov 2004 Natural Resources N
 
161 Virginia's Warbler 1 27 Oct 2004 San Francisco County Historical Records L
 
162 Western Wood-Pewee 1 2 Oct 2004 Natural Resources
163 Acorn Woodpecker 2 12 Oct 2003 Natural Resources N
 
164 Western Tanager 1 13 Nov 2002 Natural Resources N
 
165 Lesser Scaup 1 4 Jan 2002 Natural Resources
166 Dunlin 2 22 Dec 2001 Natural Resources
167 Semipalmated Plover 2 17 Dec 2001 Jim Buxton
168 Tricolored Blackbird 2 17 Dec 2001 Jim Buxton
169 American Kestrel 1 18 Dec 2000 Natural Resources
170 Black-legged Kittiwake 1 11 Dec 2000 Natural Resources N
 
171 Black Scoter 1 21 Nov 1999 Natural Resources