Totals Rodeo Lagoon Seawatch (CA) 2021

Year
Period
count-field
Also present

	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Black Brant	4	2	15	248	4	0	0	0	0	7	22	13	315	39	276	73 (20 Apr)	22	28	4 Jan	3 Dec
2.	Canada Goose	0	0	9	14	6	0	0	1	7	5	0	0	42	18	24	7 (8 Sep)	13	17	4 Mar	17 Oct
3.	Lesser Canada Goose	0	0	0	0	0	0	0	0	0	358	52	0	410	405	5	168 (11 Oct)	6	8	11 Oct	20 Nov
4.	Greater White-fronted Goose (American)	0	0	0	0	0	0	0	0	38	0	6	0	44	6	38	38 (20 Sep)	2	2	20 Sep	15 Nov
5.	Shoveler	0	0	0	0	0	0	0	0	0	7	42	0	49	49	0	17 (13 Nov)	3	4	31 Oct	15 Nov
6.	Gadwall	0	0	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (14 Nov)	1	1	14 Nov	14 Nov
7.	American Wigeon	0	0	3	0	0	0	0	0	0	0	61	0	64	54	10	54 (14 Nov)	2	3	27 Mar	14 Nov
8.	Mallard	0	0	0	2	0	0	0	0	0	1	2	0	5	4	1	2 (8 Apr)	2	3	8 Apr	14 Nov
9.	Pintail	0	0	0	0	0	0	0	14	0	39	251	0	304	254	50	205 (13 Nov)	6	8	22 Aug	15 Nov
10.	dabbling duck sp.	0	0	0	0	0	0	0	0	0	0	100	0	100	100	0	100 (13 Nov)	1	1	13 Nov	13 Nov
11.	duck sp.	0	0	0	0	0	0	0	0	0	0	201	0	201	186	15	160 (14 Nov)	2	2	14 Nov	15 Nov
12.	Green-winged Teal	0	0	0	0	0	0	0	24	0	0	46	0	70	69	1	28 (14 Nov)	3	4	22 Aug	15 Nov
13.	Scaup	0	0	0	0	0	0	0	0	0	207	59	0	266	242	24	108 (12 Oct)	6	8	12 Oct	16 Nov
14.	Surf Scoter	0	2	101	192	73	2	0	20	12	2730	2332	614	6078	5456	622	1922 (31 Oct)	60	78	20 Feb	20 Dec
15.	White-winged Scoter	0	0	0	0	0	0	0	0	0	1	2	0	3	2	1	1 (30 Oct)	2	3	30 Oct	20 Nov
16.	Black Scoter	0	0	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (9 Nov)	1	1	9 Nov	9 Nov
17.	Long-tailed Duck	0	0	0	1	0	0	0	0	0	0	0	0	1	0	1	1 (7 Apr)	1	1	7 Apr	7 Apr
18.	Bufflehead	0	0	0	0	0	0	0	0	0	0	14	0	14	14	0	8 (15 Nov)	3	4	2 Nov	17 Nov
19.	Goldeneye	0	0	1	0	0	0	0	0	0	0	11	0	12	10	2	6 (14 Nov)	3	4	17 Mar	20 Nov
20.	Red-breasted Merganser	0	0	0	3	0	0	0	0	0	3	14	0	20	18	2	12 (16 Nov)	4	5	22 Apr	16 Nov
21.	Ruddy Duck	0	0	0	0	0	0	0	0	0	0	4	0	4	4	0	3 (14 Nov)	2	2	14 Nov	15 Nov
22.	American Black Swift	0	0	0	0	0	0	0	0	5	0	0	0	5	5	0	5 (20 Sep)	1	1	20 Sep	20 Sep
23.	Vaux's Swift	0	0	0	0	0	0	0	0	6	42	0	0	48	48	0	33 (12 Oct)	3	4	20 Sep	15 Oct
24.	White-throated Swift	0	0	7	0	0	0	0	0	6	0	0	0	13	6	7	6 (20 Sep)	3	4	12 Mar	20 Sep
25.	Feral Pigeon	0	0	5	0	0	0	0	0	0	0	4	0	9	5	4	5 (30 Mar)	2	2	30 Mar	14 Nov
26.	Band-tailed Pigeon	0	0	0	4	0	0	0	0	10	2410	3890	0	6314	6285	29	1167 (28 Oct)	12	16	3 Apr	17 Nov
27.	Collared Dove	0	0	4	4	0	0	0	0	0	0	0	0	8	2	6	4 (15 Apr)	2	3	4 Mar	15 Apr
28.	Mourning Dove	0	0	1	0	0	0	0	0	0	0	0	0	1	0	1	1 (17 Mar)	1	1	17 Mar	17 Mar
29.	Black-necked / Slavonian Grebe	0	0	0	0	0	0	0	0	0	0	2	0	2	2	0	2 (18 Nov)	1	1	18 Nov	18 Nov
30.	Black Oystercatcher	0	2	4	6	0	0	0	1	0	3	2	2	20	3	17	4 (1 Apr)	8	11	20 Feb	3 Dec
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
31.	Killdeer	0	0	0	0	0	0	0	0	0	3	0	0	3	3	0	2 (12 Oct)	2	2	12 Oct	15 Oct
32.	Semipalmated Plover	0	0	0	1	1	0	5	2	0	0	0	0	9	7	2	4 (29 Jul)	4	5	26 Apr	29 Aug
33.	Snowy Plover	0	0	0	0	0	0	0	1	0	0	0	0	1	1	0	1 (29 Aug)	1	1	29 Aug	29 Aug
34.	Hudsonian Whimbrel	0	0	0	275	27	0	7	0	0	2	0	0	311	22	289	96 (19 Apr)	16	21	1 Apr	10 Oct
35.	Long-billed Curlew	0	0	2	4	2	5	0	4	0	3	0	0	20	8	12	3 (19 Apr)	11	14	25 Mar	29 Oct
36.	Marbled Godwit	0	0	0	1	0	0	0	10	45	4	0	0	60	7	53	45 (19 Sep)	5	6	6 Apr	10 Oct
37.	Short-billed Dowitcher	0	0	0	1	0	0	0	25	0	0	0	0	26	25	1	25 (15 Aug)	2	2	6 Apr	15 Aug
38.	dowitcher sp.	0	0	0	37	0	0	0	11	0	0	0	0	48	0	48	35 (13 Apr)	3	4	9 Apr	16 Aug
39.	Grey Phalarope	0	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 (31 Oct)	1	1	31 Oct	31 Oct
40.	Red-necked Phalarope	0	0	0	2	31	0	0	12	0	0	0	0	45	19	26	30 (19 May)	3	4	21 Apr	23 Aug
41.	Lesser Yellowlegs	0	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (5 May)	1	1	5 May	5 May
42.	Greater Yellowlegs	0	0	0	1	0	0	0	1	2	1	0	0	5	4	1	1 (13 Apr)	4	5	13 Apr	9 Oct
43.	Greater/Lesser Yellowlegs	0	0	0	0	0	0	0	1	0	0	0	0	1	1	0	1 (31 Aug)	1	1	31 Aug	31 Aug
44.	Sanderling	0	0	0	0	0	0	0	1	0	0	0	0	1	1	0	1 (29 Aug)	1	1	29 Aug	29 Aug
45.	Dunlin	0	0	0	0	0	0	0	0	0	2	0	0	2	2	0	2 (17 Oct)	1	1	17 Oct	17 Oct
46.	Least Sandpiper	0	0	0	5	91	0	3	3	2	0	0	0	104	8	96	55 (4 May)	6	8	29 Apr	13 Sep
47.	Western Sandpiper	0	0	0	0	0	0	1	5	0	0	0	0	6	6	0	3 (31 Aug)	3	4	28 Jul	31 Aug
48.	Caspian Tern	1	0	61	489	294	255	10	57	4	0	0	0	1171	71	1100	125 (19 May)	45	59	27 Jan	19 Sep
49.	Elegant Tern	0	0	0	39	0	13	0	123	632	1156	149	0	2112	286	1826	470 (7 Oct)	24	31	17 Apr	12 Nov
50.	Bonaparte's Gull	0	0	0	0	0	0	0	0	0	0	80	0	80	73	7	26 (17 Nov)	8	10	1 Nov	17 Nov
51.	Heermann's Gull	0	0	0	0	1	126	84	346	211	1163	635	3	2569	1463	1106	145 (26 Aug)	52	67	10 May	20 Dec
52.	Mew Gull ssp brachyrhynchus	681	3	29	3	0	0	0	0	0	61	425	5	1207	1189	18	550 (4 Jan)	35	45	4 Jan	20 Dec
53.	Ring-billed Gull	5	0	11	4	2	0	0	5	2	8	26	2	65	62	3	4 (8 Nov)	33	43	4 Jan	20 Dec
54.	Western Gull	175	35	731	637	496	328	15	180	103	1109	1137	190	5136	3055	2081	259 (24 Nov)	92	120	4 Jan	20 Dec
55.	Western x Glaucous-winged Gull	0	0	1	0	1	0	0	0	0	0	0	0	2	2	0	1 (18 Mar)	2	2	18 Mar	2 May
56.	large gull sp.	300	0	0	0	0	0	0	0	0	0	40	100	440	440	0	300 (4 Jan)	2	3	4 Jan	3 Dec
57.	California Gull	1890	42	341	405	329	597	66	190	171	1921	3685	126	9763	8598	1165	1845 (1 Nov)	95	124	4 Jan	20 Dec
58.	American Herring Gull	18	0	3	2	0	0	0	0	0	57	182	65	327	322	5	60 (20 Dec)	28	37	4 Jan	20 Dec
59.	Glaucous-winged Gull	260	2	132	60	6	0	0	0	1	68	496	385	1410	1295	115	320 (20 Dec)	67	87	4 Jan	20 Dec
60.	Thayer's Gull	29	0	15	0	0	0	0	0	0	34	126	54	258	251	7	35 (20 Dec)	29	38	4 Jan	20 Dec
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
61.	Arctic Skua	0	0	0	0	0	0	0	1	10	19	3	0	33	13	20	7 (7 Oct)	13	17	16 Aug	13 Nov
62.	Pomarine Skua	0	0	0	0	0	0	0	0	1	0	2	0	3	3	0	1 (8 Sep)	2	3	8 Sep	10 Nov
63.	Pigeon Guillemot	0	0	2	2	14	5	1	5	0	0	0	0	29	4	25	7 (15 May)	8	11	25 Mar	26 Aug
64.	Guillemot	0	13	453	965	287	83	0	0	3	29	6	5	1844	994	850	255 (2 Apr)	47	61	20 Feb	20 Dec
65.	Red-throated Diver	6	392	5115	613	101	0	0	0	2	45	134	41	6449	398	6051	1444 (13 Mar)	75	98	4 Jan	20 Dec
66.	Pacific Loon	0	0	0	131	397	0	0	0	0	1	1	0	530	4	526	303 (16 May)	19	25	2 Apr	2 Nov
67.	Great Northern Diver	0	0	1	99	10	0	0	1	2	8	6	0	127	16	111	49 (13 Apr)	28	36	26 Mar	24 Nov
68.	Fulmar	0	0	2	20	0	0	0	0	0	0	0	0	22	4	18	5 (22 Apr)	6	8	9 Mar	25 Apr
69.	Sooty Shearwater	0	0	0	0	0	0	0	300	0	0	0	0	300	0	300	300 (16 Aug)	1	1	16 Aug	16 Aug
70.	Brown Booby	0	0	1	0	0	0	0	0	0	0	0	0	1	0	1	1 (10 Mar)	1	1	10 Mar	10 Mar
71.	Brandt's Cormorant	54	25	2074	2976	397	305	91	548	361	567	437	47	7882	4610	3272	460 (9 Mar)	85	111	4 Jan	20 Dec
72.	Pelagic Cormorant	1	13	78	99	48	14	9	7	2	40	46	10	367	78	289	13 (20 Feb)	78	101	27 Jan	20 Dec
73.	Double-crested Cormorant	5	4	44	104	23	6	4	76	55	229	100	2	652	424	228	102 (28 Oct)	85	110	4 Jan	20 Dec
74.	Night Heron	0	0	0	0	0	0	0	0	1	0	0	0	1	0	1	1 (20 Sep)	1	1	20 Sep	20 Sep
75.	Snowy Egret	0	0	5	29	33	2	3	3	0	0	2	0	77	11	66	7 (3 May)	23	30	25 Mar	8 Nov
76.	Great Blue Heron	0	0	2	4	0	1	0	0	1	1	0	0	9	1	8	1 (25 Mar)	7	9	25 Mar	16 Oct
77.	Brown Pelican	0	0	0	30	269	5711	423	3437	999	5507	4821	199	21396	7147	14249	1677 (29 Jun)	61	79	16 Apr	20 Dec
78.	Turkey Vulture	0	0	0	0	6	0	0	0	0	1	0	0	7	1	6	6 (10 May)	2	2	10 May	16 Oct
79.	Osprey	0	0	9	0	0	0	0	0	2	2	1	0	14	5	9	2 (23 Mar)	9	12	9 Mar	12 Nov
80.	White-tailed Kite	0	0	0	0	0	0	0	3	0	0	1	0	4	1	3	3 (26 Aug)	2	2	26 Aug	10 Nov
81.	Sharp-shinned Hawk	0	0	2	0	0	0	0	1	13	14	3	0	33	28	5	10 (20 Sep)	12	16	23 Mar	12 Nov
82.	Cooper's Hawk	0	0	0	0	0	0	0	0	3	1	1	0	5	4	1	2 (19 Sep)	3	4	19 Sep	8 Nov
83.	Northern Harrier	0	0	4	2	0	0	0	1	2	3	1	0	13	6	7	2 (30 Mar)	9	12	23 Mar	3 Nov
84.	Bald Eagle	1	0	0	0	0	0	0	0	0	1	1	0	3	2	1	1 (27 Jan)	2	3	27 Jan	8 Nov
85.	Red-shouldered Hawk	0	0	1	0	0	0	0	0	0	1	0	0	2	2	0	1 (30 Mar)	2	2	30 Mar	12 Oct
86.	Red-tailed Hawk	0	0	0	0	0	0	0	0	0	2	0	0	2	2	0	1 (12 Oct)	2	2	12 Oct	13 Oct
87.	Merlin	0	0	1	0	0	0	0	0	1	2	1	0	5	4	1	1 (31 Mar)	4	5	31 Mar	4 Nov
88.	Peregrine	0	0	0	0	0	0	0	0	2	1	0	0	3	1	2	1 (13 Sep)	2	3	13 Sep	22 Oct
89.	Black Phoebe	0	0	0	0	0	0	0	0	1	0	0	0	1	1	0	1 (17 Sep)	1	1	17 Sep	17 Sep
90.	Say's Phoebe	0	0	0	0	0	0	0	0	0	2	0	0	2	2	0	1 (19 Oct)	2	2	19 Oct	25 Oct
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
91.	Western Kingbird	0	0	3	0	0	0	0	0	0	0	0	0	3	0	3	3 (31 Mar)	1	1	31 Mar	31 Mar
92.	American Crow	0	0	196	1	3	0	0	0	0	32	12	0	244	51	193	46 (17 Mar)	19	25	6 Mar	12 Nov
93.	Raven	0	0	20	5	2	0	0	0	18	42	2	8	97	75	22	18 (13 Oct)	12	16	6 Mar	3 Dec
94.	Cedar Waxwing	0	0	0	214	25	0	0	8	0	10	0	0	257	18	239	98 (9 Apr)	6	8	6 Apr	15 Oct
95.	Tree Swallow	0	0	13	3	2	1	0	0	0	0	0	0	19	0	19	3 (7 Mar)	9	12	7 Mar	28 Jun
96.	Violet-green Swallow	0	0	104	3	3	1	0	0	8	1063	0	0	1182	1071	111	649 (15 Oct)	15	19	7 Mar	28 Oct
97.	Northern Rough-winged Swallow	0	0	3	3	2	0	0	5	0	0	0	0	13	4	9	3 (16 Apr)	7	9	12 Mar	28 Aug
98.	Swallow	0	0	14	1	2	1	0	4	0	3	0	0	25	3	22	4 (22 Aug)	9	12	12 Mar	12 Oct
99.	Cliff Swallow	0	0	4	0	0	0	0	0	0	0	0	0	4	0	4	2 (29 Mar)	2	3	29 Mar	31 Mar
100.	swallow sp.	0	0	0	0	0	0	0	4	0	0	0	0	4	4	0	4 (28 Aug)	1	1	28 Aug	28 Aug
101.	Ruby-crowned Kinglet	0	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 (15 Oct)	1	1	15 Oct	15 Oct
102.	Starling	0	0	0	0	0	0	0	0	0	74	32	0	106	60	46	73 (28 Oct)	2	3	28 Oct	7 Nov
103.	Western Bluebird	0	0	0	2	0	0	0	0	0	0	17	0	19	6	13	11 (15 Nov)	2	3	8 Apr	15 Nov
104.	American Robin	0	0	0	0	0	0	0	0	0	0	4	0	4	3	1	2 (7 Nov)	2	3	7 Nov	11 Nov
105.	American Buff-bellied Pipit	0	0	0	0	0	0	0	0	0	85	27	0	112	107	5	46 (28 Oct)	8	10	12 Oct	8 Nov
106.	Purple Finch	0	0	0	0	0	0	0	0	0	9	0	0	9	9	0	6 (15 Oct)	2	2	9 Oct	15 Oct
107.	Crossbill	0	0	0	0	0	0	0	0	0	3	0	0	3	1	2	2 (16 Oct)	2	2	16 Oct	19 Oct
108.	American Goldfinch	0	0	9	4	0	0	0	4	1	7	0	0	25	7	18	5 (17 Mar)	8	10	17 Mar	28 Oct
109.	Lesser Goldfinch	0	0	2	0	0	0	0	0	16	173	55	0	246	231	15	103 (28 Oct)	8	10	23 Mar	12 Nov
110.	Tricolored Blackbird	0	0	0	0	0	0	0	12	2	0	0	0	14	14	0	7 (27 Aug)	3	4	27 Aug	19 Sep
111.	Red-winged Blackbird	0	0	11	0	0	0	0	9	0	43	3	0	66	54	12	23 (16 Oct)	8	11	6 Mar	3 Nov
112.	Brown-headed Cowbird	0	0	1	2	0	0	0	0	3	0	0	0	6	3	3	3 (20 Sep)	2	3	31 Mar	20 Sep
113.	Brewer's Blackbird	0	0	0	0	0	0	0	0	1	26	0	0	27	18	9	17 (12 Oct)	2	3	20 Sep	12 Oct
114.	Yellow-rumped Warbler (Audubon's)	0	0	6	2	0	0	0	0	0	20	8	0	36	12	24	10 (29 Oct)	11	14	9 Mar	15 Nov
115.	Yellow-rumped Warbler (Myrtle)	0	0	1	0	0	0	0	0	0	0	0	0	1	0	1	1 (30 Mar)	1	1	30 Mar	30 Mar
116.	Townsend's Warbler	0	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 (28 Oct)	1	1	28 Oct	28 Oct
	Other species
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Bottle-Nosed Dolphin	0	0	0	0	0	0	2	0	0	3	0	0	5	0	5	3 (28 Oct)	2	2	29 Jul	28 Oct
2.	Humpback whale	0	0	0	2	0	0	0	0	0	0	0	0	2	0	2	2 (1 Apr)	1	1	1 Apr	1 Apr
	Other species
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Monarch	0	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 (28 Oct)	1	1	28 Oct	28 Oct
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
	Totals	3430	535	9657	7756	2989	7456	724	5466	2767	19478	19827	1871	81956	46030	35926		100	130
	Observation hours	5:50	1:30	62:40	67:30	39:30	15:00	6:10	36:40	18:35	61:55	57:35	4:55	377:50

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Trektellen

Totals Rodeo Lagoon Seawatch (CA) 2021