Also present

Totals Castricum aan Zee (zeetrek) 2016

	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Dark-bellied Brent Goose	46	254	3160	242	112	1	0	0	350	138	7	26	4336	504	3832	1664 (22 Mar)	29	41	8 Jan	27 Dec
2.	Pale-bellied Brent Goose	0	0	1	0	0	0	0	0	0	0	0	0	1	0	1	1 (30 Mar)	1	1	30 Mar	30 Mar
3.	Black Brant	0	0	1	0	0	0	0	0	0	0	0	0	1	0	1	1 (29 Mar)	1	1	29 Mar	29 Mar
4.	Canada Goose	0	0	13	4	1	0	0	0	0	0	0	0	18	6	12	10 (20 Mar)	4	5	20 Mar	13 May
5.	Barnacle Goose	0	0	12	345	65	0	0	0	0	0	0	2	424	2	422	276 ( 2 Apr)	5	7	13 Mar	16 Dec
6.	Greylag Goose	1	14	45	16	9	0	0	0	0	8	11	14	118	51	67	10 (26 Nov)	18	26	17 Jan	19 Dec
7.	Anser sp.	0	0	0	0	0	0	0	0	0	0	10	0	10	10	0	10 (25 Nov)	1	1	25 Nov	25 Nov
8.	Pink-footed Goose	0	0	0	0	0	0	0	0	0	3	217	0	220	215	5	210 (24 Nov)	3	4	15 Oct	29 Nov
9.	Tundra Bean Goose	0	0	0	0	0	0	0	0	0	0	0	43	43	43	0	43 (16 Dec)	1	1	16 Dec	16 Dec
10.	Eurasian White-fronted Goose	0	0	0	0	0	0	0	0	0	5	0	0	5	0	5	5 ( 9 Oct)	1	1	9 Oct	9 Oct
11.	Mute Swan	0	0	2	0	24	0	0	2	0	0	0	0	28	2	26	24 ( 8 May)	2	3	31 Mar	17 Aug
12.	Bewick's Swan	0	0	0	0	0	0	0	0	0	0	0	2	2	2	0	2 ( 5 Dec)	1	1	5 Dec	5 Dec
13.	Whooper Swan	0	0	2	0	0	0	0	0	0	0	1	0	3	1	2	2 (20 Mar)	1	2	20 Mar	29 Nov
14.	swan sp.	14	0	0	0	9	0	0	0	0	5	0	0	28	19	9	14 (13 Jan)	2	3	13 Jan	8 Oct
15.	Egyptian Goose	0	2	1	3	3	0	0	7	0	0	3	0	19	6	13	7 (23 Aug)	4	6	26 Feb	26 Nov
16.	Shelduck	43	10	30	40	42	107	169	78	61	54	14	22	670	203	467	81 (16 Jul)	47	66	8 Jan	27 Dec
17.	Ruddy Shelduck	0	0	0	0	0	0	3	0	0	0	0	0	3	3	0	3 (20 Jul)	1	1	20 Jul	20 Jul
18.	Garganey	0	1	4	0	2	0	0	0	0	0	0	0	7	0	7	4 (13 Mar)	2	3	27 Feb	13 May
19.	Shoveler	0	0	128	109	8	1	1	4	2	4	1	2	260	73	187	59 (26 Mar)	16	22	12 Mar	19 Dec
20.	Gadwall	0	0	10	7	5	0	1	0	1	6	7	2	39	19	20	5 (12 Mar)	9	13	12 Mar	10 Dec
21.	Wigeon	70	123	1034	35	1	2	0	7	173	150	164	23	1782	390	1392	494 (22 Mar)	41	58	8 Jan	26 Dec
22.	Mallard	0	0	0	0	0	0	5	2	1	0	4	1	13	1	12	4 (19 Jul)	4	6	14 Jul	3 Dec
23.	Pintail	4	41	65	30	0	0	0	0	2	24	1	0	167	22	145	24 ( 2 Apr)	16	22	13 Jan	4 Nov
24.	Teal	5	40	459	156	6	4	15	65	65	63	12	6	896	215	681	112 (31 Mar)	47	66	17 Jan	5 Dec
25.	duck sp.	0	0	0	0	0	0	0	0	0	0	5	0	5	5	0	5 ( 7 Nov)	1	1	7 Nov	7 Nov
26.	Pochard	0	0	9	0	1	1	0	0	1	0	21	0	33	12	21	10 ( 5 Nov)	5	7	13 Mar	29 Nov
27.	Tufted Duck	2	0	8	5	6	2	1	2	13	3	5	1	48	21	27	9 (18 Sep)	14	20	20 Jan	5 Dec
28.	Scaup	0	0	10	0	0	0	0	0	6	0	17	1	34	19	15	10 (20 Mar)	4	6	20 Mar	16 Dec
29.	Eider	32	89	214	57	40	13	0	3	6	38	102	35	629	178	451	90 (22 Mar)	45	63	8 Jan	11 Dec
30.	Velvet Scoter	4	6	17	2	0	0	0	0	0	9	104	231	373	245	128	77 (11 Dec)	20	28	12 Jan	27 Dec
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
31.	Common Scoter	185	309	6498	3555	888	262	224	371	881	930	4161	10836	29100	14401	14699	3527 ( 3 Dec)	91	129	8 Jan	27 Dec
32.	Long-tailed Duck	0	0	0	0	0	0	0	0	0	2	4	6	12	7	5	2 (15 Oct)	6	8	15 Oct	19 Dec
33.	Goldeneye	0	8	9	1	0	0	0	0	0	2	8	2	30	10	20	7 (17 Feb)	9	13	17 Feb	5 Dec
34.	Smew	0	0	0	0	0	0	0	0	0	0	0	4	4	0	4	4 ( 5 Dec)	1	1	5 Dec	5 Dec
35.	Goosander	0	0	0	0	1	0	0	0	0	0	0	3	4	0	4	2 ( 5 Dec)	2	3	3 May	5 Dec
36.	Red-breasted Merganser	7	3	166	100	15	1	3	0	1	27	33	24	380	37	343	47 ( 2 Apr)	35	50	20 Jan	27 Dec
37.	Swift	0	0	0	0	2	2	1	0	0	0	0	0	5	3	2	2 (12 May)	2	3	12 May	10 Jul
38.	Feral Pigeon	0	0	0	9	4	0	0	1	0	0	0	0	14	8	6	9 ( 3 Apr)	4	5	3 Apr	27 Aug
39.	Woodpigeon	0	0	0	0	0	0	0	0	0	1	0	0	1	0	1	1 ( 7 Oct)	1	1	7 Oct	7 Oct
40.	Red-necked Grebe	1	0	1	0	0	0	0	1	0	0	1	0	4	2	2	1 (12 Jan)	3	4	12 Jan	26 Nov
41.	Great Crested Grebe	496	96	56	6	1	2	4	0	3	10	123	67	864	641	223	347 (30 Jan)	47	66	8 Jan	17 Dec
42.	Slavonian Grebe	0	0	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (26 Nov)	1	1	26 Nov	26 Nov
43.	Black-necked / Slavonian Grebe	0	0	0	1	0	0	0	0	0	0	0	0	1	0	1	1 ( 2 Apr)	1	1	2 Apr	2 Apr
44.	Oystercatcher	0	13	83	60	334	4	34	17	16	0	4	3	568	149	419	76 (13 May)	45	64	20 Feb	11 Dec
45.	Avocet	0	0	6	54	17	0	0	0	0	0	0	0	77	0	77	54 ( 2 Apr)	4	5	20 Mar	15 May
46.	Lapwing	0	0	5	0	0	0	0	0	0	0	0	0	5	0	5	2 (13 Mar)	2	3	12 Mar	30 Mar
47.	Golden Plover	0	0	0	0	2	0	0	0	0	0	0	0	2	0	2	2 (12 May)	1	1	12 May	12 May
48.	Grey Plover	0	0	16	79	541	0	0	1	3	5	0	1	646	4	642	325 (12 May)	16	23	20 Mar	3 Dec
49.	Ringed Plover	0	2	11	3	339	0	6	9	7	0	0	0	377	10	367	168 (13 May)	13	19	27 Feb	30 Sep
50.	Little Ringed Plover	0	0	0	1	0	0	0	0	0	0	0	0	1	0	1	1 ( 2 Apr)	1	1	2 Apr	2 Apr
51.	Kentish Plover	0	0	0	0	2	0	0	0	0	0	0	0	2	0	2	2 ( 5 May)	1	1	5 May	5 May
52.	Whimbrel	0	0	0	88	97	0	22	30	72	0	0	0	309	122	187	70 ( 4 Sep)	21	29	3 Apr	4 Sep
53.	Curlew	6	7	106	9	5	6	5	2	3	7	9	2	167	27	140	81 (22 Mar)	31	44	8 Jan	26 Dec
54.	Bar-tailed Godwit	0	0	32	122	302	0	1	4	33	0	0	0	494	34	460	248 ( 1 May)	12	17	13 Mar	11 Sep
55.	Turnstone	0	0	0	0	58	0	1	6	32	3	6	2	108	21	87	29 (13 May)	13	19	12 May	26 Dec
56.	Knot	0	0	55	133	515	0	10	8	65	162	18	0	966	130	836	190 ( 1 May)	21	29	13 Mar	29 Nov
57.	Ruff	0	0	7	0	0	0	0	8	6	0	0	0	21	17	4	6 (29 Mar)	4	6	12 Mar	11 Sep
58.	wader sp.	0	0	0	259	262	0	0	6	11	9	0	0	547	20	527	258 (30 Apr)	6	8	2 Apr	7 Oct
59.	Curlew Sandpiper	0	0	0	0	0	0	0	1	3	0	0	0	4	3	1	3 (15 Sep)	1	2	17 Aug	15 Sep
60.	Temminck's Stint	0	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (12 May)	1	1	12 May	12 May
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
61.	Sanderling	0	23	199	138	2519	1	97	17	67	49	123	26	3259	101	3158	1388 (13 May)	46	65	11 Feb	16 Dec
62.	Dunlin	65	352	2489	112	112	0	6	24	26	48	201	8	3443	196	3247	637 (13 Mar)	40	56	8 Jan	1 Dec
63.	Purple Sandpiper	0	0	0	0	0	0	0	0	0	0	1	0	1	0	1	1 (25 Nov)	1	1	25 Nov	25 Nov
64.	Little Stint	0	0	2	0	5	0	0	2	0	0	0	0	9	0	9	3 (13 May)	3	4	13 Mar	17 Aug
65.	Calidris sp.	4	0	10	401	333	0	1	3	7	7	23	2	791	10	781	401 (30 Apr)	11	16	12 Jan	3 Dec
66.	Snipe	0	0	4	0	0	0	0	0	10	0	1	0	15	10	5	8 (15 Sep)	4	6	12 Mar	24 Nov
67.	Grey Phalarope	0	0	0	0	0	0	0	0	0	0	2	0	2	1	1	1 (19 Nov)	1	2	19 Nov	24 Nov
68.	Common Sandpiper	0	0	0	0	1	0	2	0	0	0	0	0	3	2	1	1 (13 May)	2	3	13 May	31 Jul
69.	Redshank	0	0	2	0	63	0	1	0	0	0	1	0	67	2	65	35 (13 May)	6	8	26 Mar	24 Nov
70.	Wood Sandpiper	0	0	0	0	2	0	0	1	0	0	0	0	3	1	2	2 ( 8 May)	1	2	8 May	17 Aug
71.	Spotted Redshank	0	0	0	0	2	0	0	1	0	0	0	0	3	0	3	2 (13 May)	1	2	13 May	17 Aug
72.	Greenshank	0	0	0	0	5	0	1	2	1	0	0	0	9	4	5	3 (12 May)	5	7	8 May	17 Sep
73.	Kittiwake	355	16	3	0	0	0	0	1	4	2	256	1879	2516	1679	837	1080 (26 Dec)	25	35	8 Jan	27 Dec
74.	Black-headed Gull	44	125	2619	147	445	16	4627	512	396	1602	585	1126	12244	8170	4074	3058 (20 Jul)	89	126	8 Jan	27 Dec
75.	Little Gull	116	8	848	2495	164	0	1	5	0	12	3	1	3653	879	2774	1856 ( 8 Apr)	23	32	8 Jan	8 Dec
76.	Mediterranean Gull	0	0	4	0	1	0	14	1	1	2	0	0	23	15	8	7 (21 Jul)	10	14	20 Mar	28 Oct
77.	Common Gull	489	247	3099	511	597	8	189	211	204	986	742	1329	8612	2995	5617	1472 (22 Mar)	87	122	8 Jan	27 Dec
78.	Great Black-backed Gull	28	34	20	0	0	0	0	2	54	45	16	13	212	130	82	32 (21 Feb)	13	18	9 Jan	27 Dec
79.	Iceland Gull	0	0	2	0	0	0	0	0	0	0	0	0	2	1	1	1 (22 Mar)	1	2	22 Mar	26 Mar
80.	Caspian Gull	0	1	0	0	0	0	0	1	0	2	3	1	8	4	4	2 (19 Nov)	5	7	27 Feb	8 Dec
81.	Yellow-legged Gull	0	1	0	0	1	0	0	0	0	0	0	0	2	1	1	1 (27 Feb)	1	2	27 Feb	5 May
82.	Lesser Black-backed Gull	3	22	0	0	0	0	0	0	0	0	17	14	56	31	25	20 (21 Feb)	9	13	28 Jan	26 Dec
83.	Caspian Tern	0	0	0	0	0	0	3	0	0	0	0	0	3	3	0	2 (19 Jul)	1	2	19 Jul	20 Jul
84.	Sandwich Tern	1	0	14	194	397	201	3258	1601	1810	178	0	0	7654	5165	2489	1031 (31 Jul)	58	82	8 Jan	29 Oct
85.	Little Tern	0	0	0	49	130	1	16	22	0	0	0	0	218	37	181	46 ( 1 May)	16	23	18 Apr	28 Aug
86.	Common Tern	0	0	16	672	2549	299	991	342	20	5	0	0	4894	1736	3158	615 (16 May)	43	60	29 Mar	16 Oct
87.	Arctic Tern	0	0	0	6	950	0	0	1	1	0	0	0	958	8	950	542 (12 May)	10	14	18 Apr	17 Sep
88.	Common/Arctic Tern	0	0	0	433	663	17	583	449	24	1	0	0	2170	1154	1016	429 (30 Apr)	30	43	3 Apr	2 Oct
89.	Black Tern	0	0	0	0	96	0	3	9	3	1	0	0	112	6	106	33 (13 May)	13	19	1 May	2 Oct
90.	Great Skua	0	0	0	0	0	0	0	0	5	2	3	2	12	9	3	2 (29 Sep)	6	9	5 Sep	26 Dec
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
91.	Pomarine Skua	0	0	0	0	1	0	0	0	5	0	2	0	8	6	2	4 (29 Sep)	4	5	15 May	19 Nov
92.	Arctic Skua	0	0	1	0	8	0	1	9	5	5	2	0	31	11	20	5 ( 2 Oct)	12	17	29 Mar	12 Nov
93.	S. parasiticus / pomarinus	0	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 ( 2 Oct)	1	1	2 Oct	2 Oct
94.	Long-tailed Skua	0	0	0	0	0	0	0	1	0	0	0	0	1	1	0	1 (21 Aug)	1	1	21 Aug	21 Aug
95.	skua sp.	0	0	0	0	1	0	0	0	2	0	0	0	3	2	1	2 (29 Sep)	1	2	14 May	29 Sep
96.	Little Auk	0	0	0	0	0	0	0	0	0	0	7	1	8	6	2	3 (17 Nov)	4	5	5 Nov	3 Dec
97.	Guillemot	34	2	0	0	2	0	0	0	7	19	27	543	634	535	99	477 ( 8 Dec)	22	31	8 Jan	27 Dec
98.	Razorbill	2	0	0	0	0	0	0	0	2	3	13	9	29	11	18	8 ( 6 Nov)	12	17	12 Jan	27 Dec
99.	Razorbill/Guillemot	392	8	9	1	2	0	0	0	27	737	1367	2002	4545	1596	2949	933 ( 5 Nov)	41	58	8 Jan	27 Dec
100.	Puffin	1	0	0	0	0	0	0	0	1	1	0	0	3	1	2	1 (28 Jan)	2	3	28 Jan	18 Oct
101.	Red-throated Diver	288	18	116	14	8	0	0	0	10	73	722	2171	3420	2981	439	493 (19 Dec)	55	77	8 Jan	26 Dec
102.	Black-throated Diver	2	0	8	3	0	0	0	0	0	1	2	2	18	5	13	3 (22 Mar)	9	13	8 Jan	19 Dec
103.	Great Northern Diver	0	0	0	0	0	0	0	0	0	1	1	0	2	1	1	1 (15 Oct)	1	2	15 Oct	19 Nov
104.	diver sp.	163	95	146	35	4	0	0	1	5	80	241	547	1317	671	646	202 (27 Dec)	52	73	8 Jan	27 Dec
105.	Leach's Petrel	0	0	0	0	0	0	0	0	0	1	0	0	1	0	1	1 (19 Oct)	1	1	19 Oct	19 Oct
106.	Fulmar	0	0	0	0	0	1	0	0	2	0	0	0	3	2	1	1 (18 Jun)	2	3	18 Jun	11 Sep
107.	Sooty Shearwater	0	0	0	0	0	0	0	0	56	4	0	0	60	59	1	46 (29 Sep)	4	6	4 Sep	18 Oct
108.	Manx Shearwater	0	0	0	0	0	1	0	0	4	1	0	0	6	4	2	3 (29 Sep)	3	4	18 Jun	2 Oct
109.	Balearic Shearwater	0	0	0	0	0	0	1	0	1	0	0	0	2	1	1	1 (31 Jul)	1	2	31 Jul	4 Sep
110.	Gannet	132	10	58	15	59	76	23	42	226	235	72	541	1489	724	765	285 (26 Dec)	70	98	8 Jan	26 Dec
111.	Cormorant	0	0	0	0	0	0	0	0	0	0	0	203	203	203	0	203 (12 Dec)	1	1	12 Dec	12 Dec
112.	Spoonbill	0	0	1	0	3	0	0	2	94	0	0	0	100	100	0	52 (11 Sep)	4	5	5 Mar	30 Sep
113.	Grey Heron	0	0	0	0	1	0	3	0	5	16	1	0	26	22	4	16 ( 7 Oct)	6	8	13 May	25 Nov
114.	Great White Egret	0	0	0	0	0	0	0	0	3	0	1	0	4	4	0	3 (15 Sep)	1	2	15 Sep	24 Nov
115.	Sparrowhawk	0	0	0	0	0	0	0	0	1	1	0	0	2	0	2	1 ( 3 Sep)	1	2	3 Sep	8 Oct
116.	Short-eared Owl	0	0	0	0	0	0	0	0	0	1	0	0	1	0	1	1 ( 9 Oct)	1	1	9 Oct	9 Oct
117.	Merlin	0	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 (16 Oct)	1	1	16 Oct	16 Oct
118.	Peregrine	1	0	0	1	0	0	0	1	2	2	0	0	7	3	4	1 (12 Jan)	5	7	12 Jan	19 Oct
119.	Rook	0	0	4	0	0	0	0	0	0	0	0	0	4	4	0	4 (30 Mar)	1	1	30 Mar	30 Mar
120.	Carrion Crow	0	0	0	0	2	0	0	0	0	0	0	0	2	0	2	2 (13 May)	1	1	13 May	13 May
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
121.	Blue Tit	0	0	1	0	0	0	0	0	0	0	0	0	1	1	0	1 (13 Mar)	1	1	13 Mar	13 Mar
122.	Skylark	0	0	7	0	0	0	0	0	0	5	2	0	14	7	7	5 ( 7 Oct)	4	5	13 Mar	26 Nov
123.	Sand Martin	0	0	0	2	3	0	7	0	0	0	0	0	12	5	7	4 (14 Jul)	4	5	3 Apr	20 Jul
124.	Swallow	0	0	0	1	29	0	37	4	45	0	0	0	116	85	31	37 (15 Sep)	12	17	3 Apr	18 Sep
125.	Starling	0	0	190	5	0	0	0	0	0	0	191	0	386	189	197	160 (21 Nov)	5	7	12 Mar	22 Nov
126.	Redwing	0	0	1	0	0	0	0	0	0	0	0	0	1	0	1	1 (26 Mar)	1	1	26 Mar	26 Mar
127.	Blue-headed Wagtail	0	0	0	0	0	0	0	0	2	0	0	0	2	2	0	1 ( 8 Sep)	1	2	8 Sep	15 Sep
128.	Yellow wagtail sp.	0	0	0	1	0	0	0	0	0	0	0	0	1	0	1	1 ( 4 Apr)	1	1	4 Apr	4 Apr
129.	Grey Wagtail	0	0	0	0	0	0	0	0	1	9	0	0	10	9	1	9 ( 2 Oct)	1	2	18 Sep	2 Oct
130.	White Wagtail	0	0	4	5	1	3	4	0	18	0	0	0	35	29	6	8 ( 8 Sep)	7	10	31 Mar	18 Sep
131.	alba wagtail sp.	0	0	20	4	0	0	0	0	0	0	0	0	24	14	10	11 (26 Mar)	3	4	17 Mar	8 Apr
132.	Meadow Pipit	0	0	6	0	0	0	0	0	0	0	2	0	8	2	6	5 (17 Mar)	2	3	13 Mar	26 Nov
133.	Tree Pipit	0	0	0	0	0	0	0	0	1	0	0	0	1	0	1	1 (18 Sep)	1	1	18 Sep	18 Sep
134.	Red-throated Pipit	0	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (12 May)	1	1	12 May	12 May
135.	Rock Pipit	0	0	3	2	0	0	0	0	0	4	1	0	10	5	5	2 (13 Mar)	4	6	13 Mar	26 Nov
136.	Rock Pipit/Water Pipit	0	0	1	0	0	0	0	0	0	0	0	0	1	0	1	1 (12 Mar)	1	1	12 Mar	12 Mar
137.	Greenfinch	0	0	2	0	0	0	0	0	0	0	0	0	2	2	0	2 (26 Mar)	1	1	26 Mar	26 Mar
138.	Linnet	0	0	1	0	5	0	0	0	0	0	0	0	6	6	0	5 ( 5 May)	1	2	12 Mar	5 May
139.	Lapland Bunting	0	0	0	0	0	0	0	0	0	0	1	0	1	0	1	1 (25 Nov)	1	1	25 Nov	25 Nov
140.	Snow Bunting	0	0	5	0	0	0	0	0	0	0	5	2	12	7	5	4 ( 5 Mar)	4	6	5 Mar	3 Dec
141.	Reed Bunting	0	0	1	0	0	0	0	0	0	0	0	0	1	0	1	1 (12 Mar)	1	1	12 Mar	12 Mar
	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.	Harbour Porpoise	21	11	15	2	0	0	4	0	5	7	15	97	177	95	82	32 ( 3 Dec)	30	43	12 Jan	19 Dec
2.	whale sp.	0	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 ( 7 Oct)	1	1	7 Oct	7 Oct
3.	Grey seal	0	0	0	1	0	0	0	0	0	0	0	0	1	1	0	1 ( 2 Apr)	1	1	2 Apr	2 Apr
4.	Common Seal	1	0	1	0	0	0	0	1	1	0	0	1	5	3	2	1 (12 Jan)	4	5	12 Jan	1 Dec
	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.	Small Tortoiseshell	0	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 ( 7 Oct)	1	1	7 Oct	7 Oct
2.	white sp. (butterfly)	0	0	0	0	47	0	0	13	6	3	0	0	69	25	44	36 ( 8 May)	9	13	5 May	16 Oct
3.	Red Admiral	0	0	0	0	0	0	0	0	6	2	0	0	8	8	0	5 (15 Sep)	3	4	15 Sep	16 Oct
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
	Totals	3058	1991	22208	10781	12932	1032	10379	3916	4993	5825	9726	21881	108722	47716	61006		100	141
	Observation hours	10:50	10:25	27:00	16:30	23:00	7:00	24:20	26:15	33:30	25:35	26:45	24:00	255:10

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Totals Castricum aan Zee (zeetrek) 2016