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Totals Katwijk - Savoy (zeetrek) 2025

	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Dark-bellied Brent Goose	0	151	15	610	0	0	0	0	776	4	772	610 (21 May)	24	7	13 Mar	21 May
2.	Pale-bellied Brent Goose	0	0	0	1	0	0	0	0	1	0	1	1 (21 May)	3	1	21 May	21 May
3.	Canada Goose	0	29	10	0	0	0	32	0	71	26	45	32 (23 Aug)	24	7	8 Mar	23 Aug
4.	Barnacle Goose	0	245	217	4	0	0	0	0	466	5	461	195 ( 8 Mar)	24	7	8 Mar	14 May
5.	Greylag Goose	0	50	2	0	0	0	0	24	76	44	32	24 (14 Sep)	28	8	8 Mar	14 Sep
6.	Mute Swan	0	0	0	1	0	0	0	0	1	0	1	1 ( 7 May)	3	1	7 May	7 May
7.	swan sp.	0	0	0	3	0	0	0	0	3	3	0	3 ( 5 May)	3	1	5 May	5 May
8.	Egyptian Goose	0	26	6	0	0	0	0	0	32	6	26	20 ( 8 Mar)	14	4	8 Mar	3 Apr
9.	Shelduck	4	15	26	85	0	0	202	211	543	318	225	209 ( 5 Sep)	69	20	6 Feb	5 Sep
10.	Shoveler	0	45	24	0	0	0	0	0	69	24	45	21 ( 9 Mar)	21	6	8 Mar	18 Apr
11.	Gadwall	0	0	4	2	0	0	4	3	13	6	7	4 (23 Aug)	21	6	3 Apr	14 Sep
12.	Wigeon	47	391	27	3	0	0	0	26	494	24	470	221 (29 Mar)	45	13	6 Feb	8 Sep
13.	Mallard	0	0	0	1	0	0	0	0	1	0	1	1 (21 May)	3	1	21 May	21 May
14.	Pintail	0	14	0	0	0	0	0	2	16	2	14	11 ( 8 Mar)	14	4	8 Mar	14 Sep
15.	Teal	0	505	134	14	0	0	1	65	719	65	654	376 (29 Mar)	72	21	8 Mar	14 Sep
16.	duck sp.	0	151	5	0	0	0	0	0	156	0	156	120 ( 8 Mar)	17	5	8 Mar	9 Apr
17.	Tufted Duck	0	7	0	1	0	0	0	1	9	1	8	6 ( 9 Mar)	14	4	9 Mar	11 Sep
18.	Scaup	0	0	0	0	0	0	0	4	4	0	4	4 ( 5 Sep)	3	1	5 Sep	5 Sep
19.	Eider	3	40	83	55	0	0	0	27	208	70	138	48 (18 Apr)	83	24	6 Feb	14 Sep
20.	Velvet Scoter	0	1	0	0	0	0	0	0	1	0	1	1 (30 Mar)	3	1	30 Mar	30 Mar
21.	Common Scoter	0	395	478	413	0	0	13	185	1484	327	1157	203 (18 Apr)	97	28	8 Mar	14 Sep
22.	Long-tailed Duck	0	0	0	1	0	0	0	0	1	0	1	1 ( 6 May)	3	1	6 May	6 May
23.	Red-breasted Merganser	1	28	35	1	0	0	0	1	66	18	48	14 (18 Apr)	48	14	6 Feb	5 Sep
24.	Swift	0	0	1	0	0	0	0	1	2	1	1	1 (28 Apr)	7	2	28 Apr	4 Sep
25.	Great Crested Grebe	6	10	10	16	0	0	1	8	51	15	36	11 (21 May)	62	18	6 Feb	14 Sep
26.	Oystercatcher	10	10	52	94	0	0	4	8	178	20	158	19 ( 7 May)	83	24	6 Feb	11 Sep
27.	Avocet	0	22	11	1	0	0	0	0	34	0	34	19 ( 8 Mar)	24	7	8 Mar	22 May
28.	Grey Plover	0	3	32	98	0	0	0	44	177	44	133	41 ( 4 Sep)	48	14	16 Mar	11 Sep
29.	Golden Plover	0	0	2	0	0	0	0	0	2	0	2	2 (18 Apr)	3	1	18 Apr	18 Apr
30.	Ringed Plover	0	6	12	271	0	0	4	61	354	65	289	94 (14 May)	55	16	8 Mar	14 Sep
	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
31.	Whimbrel	0	0	174	75	0	0	0	14	263	14	249	57 (18 Apr)	45	13	3 Apr	4 Sep
32.	Curlew	0	6	4	0	0	0	0	0	10	0	10	6 (29 Mar)	7	2	29 Mar	18 Apr
33.	Bar-tailed Godwit	0	0	120	23	0	0	0	39	182	39	143	81 (25 Apr)	45	13	3 Apr	14 Sep
34.	Common Sandpiper	0	0	0	0	0	0	0	8	8	8	0	8 ( 4 Sep)	3	1	4 Sep	4 Sep
35.	Redshank	0	0	1	9	0	0	0	0	10	0	10	8 ( 5 May)	10	3	3 Apr	6 May
36.	Greenshank	0	0	18	1	0	0	0	0	19	0	19	16 (26 Apr)	10	3	26 Apr	6 May
37.	Turnstone	0	0	1	24	0	0	0	2	27	2	25	9 ( 6 May)	21	6	26 Apr	11 Sep
38.	Knot	0	0	0	288	0	0	1	5	294	5	289	178 ( 5 May)	28	8	4 May	5 Sep
39.	wader sp.	0	27	6	31	0	0	0	16	80	7	73	20 ( 4 May)	38	11	8 Mar	8 Sep
40.	Curlew Sandpiper	0	0	0	0	0	0	0	1	1	1	0	1 (14 Sep)	3	1	14 Sep	14 Sep
41.	Sanderling	0	13	17	825	0	0	8	12	875	28	847	208 (21 May)	59	17	8 Mar	14 Sep
42.	Dunlin	1	43	6	136	0	0	0	14	200	14	186	38 ( 4 May)	59	17	6 Feb	14 Sep
43.	Little / Temminck's Stint	0	0	0	0	0	0	0	1	1	1	0	1 ( 5 Sep)	3	1	5 Sep	5 Sep
44.	Calidris sp.	0	10	9	67	0	0	0	3	89	3	86	27 (14 May)	28	8	8 Mar	14 Sep
45.	Little Tern	0	0	170	87	0	0	0	4	261	6	255	117 (18 Apr)	45	13	18 Apr	14 Sep
46.	Gull-billed Tern	0	0	0	3	0	0	0	0	3	0	3	3 ( 6 May)	3	1	6 May	6 May
47.	Black Tern	0	0	12	160	0	0	0	2	174	2	172	45 ( 6 May)	41	12	18 Apr	5 Sep
48.	Arctic Tern	0	0	86	121	0	0	0	13	220	13	207	49 (20 Apr)	45	13	18 Apr	8 Sep
49.	Common/Arctic Tern	0	0	120	3561	0	0	0	270	3951	270	3681	1251 ( 4 May)	38	11	26 Apr	14 Sep
50.	Common Tern	0	0	2140	1802	0	0	8	15	3965	102	3863	584 (14 May)	55	16	9 Apr	14 Sep
51.	Sandwich Tern	0	9	908	372	0	0	54	553	1896	573	1323	267 (14 Sep)	79	23	29 Mar	14 Sep
52.	Little Gull	0	10	569	21	0	0	0	0	600	0	600	187 (26 Apr)	34	10	13 Mar	6 May
53.	Kittiwake	0	1	0	0	0	0	0	0	1	1	0	1 (13 Mar)	3	1	13 Mar	13 Mar
54.	Black-headed Gull	21	303	293	106	0	0	56	170	949	211	738	190 (28 Apr)	62	18	6 Feb	14 Sep
55.	Mediterranean Gull	0	2	5	2	0	0	0	1	10	3	7	2 (18 Apr)	28	8	9 Mar	11 Sep
56.	Common Gull	0	40	165	23	0	0	1	11	240	26	214	95 (28 Apr)	34	10	9 Mar	14 Sep
57.	Herring Gull	13	157	50	12	0	0	12	12	256	19	237	128 ( 9 Mar)	31	9	6 Feb	14 Sep
58.	Great Black-backed Gull	0	2	2	1	0	0	0	1	6	1	5	1 ( 8 Mar)	21	6	8 Mar	14 Sep
59.	Lesser Black-backed Gull	0	456	69	117	0	0	6	79	727	83	644	384 ( 9 Mar)	52	15	8 Mar	14 Sep
60.	Long-tailed Skua	0	0	0	0	0	0	0	3	3	3	0	2 ( 5 Sep)	7	2	4 Sep	5 Sep
	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
61.	skua sp.	0	0	0	0	0	0	0	1	1	1	0	1 (14 Sep)	3	1	14 Sep	14 Sep
62.	Arctic Skua	0	0	0	0	0	0	1	6	7	7	0	3 ( 8 Sep)	14	4	23 Aug	14 Sep
63.	Great Skua	0	0	0	0	0	0	0	2	2	2	0	1 ( 4 Sep)	7	2	4 Sep	5 Sep
64.	Razorbill/Guillemot	0	0	0	0	0	0	0	5	5	4	1	4 (14 Sep)	7	2	11 Sep	14 Sep
65.	Guillemot	0	0	0	0	0	0	0	6	6	5	1	4 ( 5 Sep)	7	2	5 Sep	14 Sep
66.	Red-throated Diver	6	24	14	2	0	0	0	5	51	21	30	7 (13 Mar)	55	16	6 Feb	14 Sep
67.	diver sp.	0	0	1	2	0	0	0	1	4	2	2	1 (18 Apr)	14	4	18 Apr	14 Sep
68.	Leach's Petrel	0	0	0	0	0	0	0	1	1	1	0	1 (11 Sep)	3	1	11 Sep	11 Sep
69.	Sooty Shearwater	0	0	0	0	0	0	0	1	1	1	0	1 ( 5 Sep)	3	1	5 Sep	5 Sep
70.	Gannet	0	12	9	4	0	0	0	74	99	72	27	33 (11 Sep)	48	14	8 Mar	14 Sep
71.	Cormorant	40	216	278	1017	0	0	29	446	2026	622	1404	452 (22 May)	93	27	6 Feb	14 Sep
72.	Spoonbill	0	0	3	0	0	0	0	60	63	60	3	60 ( 5 Sep)	7	2	9 Apr	5 Sep
73.	Great White Egret	0	0	0	2	0	0	0	0	2	0	2	2 (14 May)	3	1	14 May	14 May
74.	Grey Heron	0	3	4	2	0	0	1	4	14	4	10	4 ( 9 Apr)	24	7	8 Mar	14 Sep
75.	Osprey	0	0	0	0	0	0	0	1	1	1	0	1 ( 8 Sep)	3	1	8 Sep	8 Sep
76.	Marsh Harrier	0	0	0	1	0	0	0	0	1	0	1	1 (14 May)	3	1	14 May	14 May
77.	Kestrel	0	0	0	0	0	0	0	1	1	1	0	1 ( 8 Sep)	3	1	8 Sep	8 Sep
78.	Hobby	0	0	1	0	0	0	0	2	3	2	1	2 ( 4 Sep)	7	2	20 Apr	4 Sep
79.	Peregrine	0	0	0	0	0	0	1	1	2	1	1	1 (23 Aug)	7	2	23 Aug	11 Sep
80.	Jackdaw	0	0	8	0	0	0	0	0	8	0	8	8 (28 Apr)	3	1	28 Apr	28 Apr
81.	Carrion Crow	0	0	2	0	0	0	0	0	2	2	0	2 ( 3 Apr)	3	1	3 Apr	3 Apr
82.	Sand Martin	0	0	2	1	0	0	0	0	3	0	3	2 (25 Apr)	7	2	25 Apr	5 May
83.	Swallow	0	0	20	38	0	0	0	14	72	14	58	17 (14 May)	41	12	18 Apr	14 Sep
84.	House Martin	0	0	0	0	0	0	0	3	3	3	0	2 ( 5 Sep)	7	2	4 Sep	5 Sep
85.	Starling	0	5	0	0	0	0	0	0	5	0	5	4 (16 Mar)	7	2	13 Mar	16 Mar
86.	Wheatear	0	0	0	0	0	0	0	2	2	2	0	2 ( 4 Sep)	3	1	4 Sep	4 Sep
87.	Blue-headed Wagtail	0	0	0	2	0	0	0	0	2	0	2	2 (14 May)	3	1	14 May	14 May
88.	Yellow wagtail sp.	0	0	7	2	0	0	0	6	15	6	9	6 (14 Sep)	14	4	18 Apr	14 Sep
89.	Grey Wagtail	0	0	0	0	0	0	0	1	1	1	0	1 (14 Sep)	3	1	14 Sep	14 Sep
90.	White Wagtail	0	5	0	0	0	0	0	0	5	0	5	2 ( 9 Mar)	10	3	9 Mar	16 Mar
	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
91.	alba wagtail sp.	0	1	0	0	0	0	0	30	31	30	1	26 ( 5 Sep)	10	3	29 Mar	5 Sep
92.	Meadow Pipit	0	2	0	0	0	0	0	62	64	62	2	32 (14 Sep)	21	6	13 Mar	14 Sep
93.	Crossbill	0	0	0	0	0	0	0	2	2	2	0	2 (14 Sep)	3	1	14 Sep	14 Sep
	Other species
	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Harbour Porpoise	0	3	2	0	0	0	0	0	5	2	3	3 (13 Mar)	7	2	13 Mar	28 Apr
	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
	Totals	152	3494	6482	10615	0	0	439	2657	23839	3454	20385		100	29
	Observation hours	1:00	10:11	13:10	17:59	0:00	0:00	2:00	14:10	58:30

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Totals Katwijk - Savoy (zeetrek) 2025