Totals Katwijk - Savoy (zeetrek) 2025

Year
Period
count-field
Also present

	Species	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	0	151	15	610	0	0	0	0	406	9	0	1191	417	774	610 (21 May)	34	17	13 Mar	9 Nov
2.	Pale-bellied Brent Goose	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (21 May)	2	1	21 May	21 May
3.	Canada Goose	0	29	10	0	0	0	32	0	0	0	0	71	26	45	32 (23 Aug)	14	7	8 Mar	23 Aug
4.	Barnacle Goose	0	245	217	4	0	0	0	0	0	0	0	466	5	461	195 ( 8 Mar)	14	7	8 Mar	14 May
5.	Greylag Goose	0	50	2	0	0	0	0	24	0	0	0	76	44	32	24 (14 Sep)	16	8	8 Mar	14 Sep
6.	Mute Swan	0	0	0	1	0	0	0	0	0	1	0	2	1	1	1 ( 7 May)	4	2	7 May	9 Nov
7.	swan sp.	0	0	0	3	0	0	0	0	0	0	0	3	3	0	3 ( 5 May)	2	1	5 May	5 May
8.	Egyptian Goose	0	26	6	0	0	0	0	0	0	0	0	32	6	26	20 ( 8 Mar)	8	4	8 Mar	3 Apr
9.	Shelduck	4	15	26	85	0	0	202	327	888	0	0	1547	1318	229	467 (25 Oct)	68	34	6 Feb	30 Oct
10.	Shoveler	0	45	24	0	0	0	0	0	0	0	0	69	24	45	21 ( 9 Mar)	12	6	8 Mar	18 Apr
11.	Gadwall	0	0	4	2	0	0	4	5	5	0	1	21	10	11	4 (23 Aug)	22	11	3 Apr	9 Dec
12.	Wigeon	47	391	27	3	0	0	0	47	24	2	36	577	102	475	221 (29 Mar)	50	25	6 Feb	9 Dec
13.	Mallard	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (21 May)	2	1	21 May	21 May
14.	Pintail	0	14	0	0	0	0	0	10	12	1	0	37	22	15	11 ( 8 Mar)	18	9	8 Mar	9 Nov
15.	Teal	0	505	134	14	0	0	1	75	10	0	0	739	84	655	376 (29 Mar)	50	25	8 Mar	26 Oct
16.	duck sp.	0	151	5	0	0	0	0	0	0	0	0	156	0	156	120 ( 8 Mar)	10	5	8 Mar	9 Apr
17.	Pochard	0	0	0	0	0	0	0	2	0	0	0	2	2	0	2 (21 Sep)	2	1	21 Sep	21 Sep
18.	Tufted Duck	0	7	0	1	0	0	0	7	11	0	0	26	11	15	6 ( 9 Mar)	20	10	9 Mar	25 Oct
19.	Scaup	0	0	0	0	0	0	0	8	0	0	0	8	4	4	4 ( 5 Sep)	4	2	5 Sep	21 Sep
20.	Eider	3	40	83	55	0	0	0	33	9	0	0	223	78	145	48 (18 Apr)	58	29	6 Feb	28 Oct
21.	Velvet Scoter	0	1	0	0	0	0	0	0	0	0	0	1	0	1	1 (30 Mar)	2	1	30 Mar	30 Mar
22.	Common Scoter	0	395	478	413	0	0	13	302	222	8	20	1851	529	1322	203 (18 Apr)	94	47	8 Mar	9 Dec
23.	Long-tailed Duck	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 ( 6 May)	2	1	6 May	6 May
24.	Red-breasted Merganser	1	28	35	1	0	0	0	3	58	2	2	130	80	50	24 ( 4 Oct)	52	26	6 Feb	9 Dec
25.	Swift	0	0	1	0	0	0	0	1	0	0	0	2	1	1	1 (28 Apr)	4	2	28 Apr	4 Sep
26.	Great Crested Grebe	6	10	10	16	0	0	1	11	14	2	0	70	31	39	11 (21 May)	58	29	6 Feb	9 Nov
27.	Oystercatcher	10	10	52	94	0	0	4	22	7	0	0	199	38	161	19 ( 7 May)	58	29	6 Feb	5 Oct
28.	Avocet	0	22	11	1	0	0	0	0	0	0	0	34	0	34	19 ( 8 Mar)	14	7	8 Mar	22 May
29.	Grey Plover	0	3	32	98	0	0	0	53	18	0	0	204	71	133	41 ( 4 Sep)	44	22	16 Mar	28 Oct
30.	Golden Plover	0	0	2	0	0	0	0	4	2	0	0	8	6	2	3 (17 Sep)	10	5	18 Apr	5 Oct
	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
31.	Ringed Plover	0	6	12	271	0	0	4	94	0	0	0	387	93	294	94 (14 May)	38	19	8 Mar	22 Sep
32.	Whimbrel	0	0	174	75	0	0	0	41	3	0	0	293	44	249	57 (18 Apr)	36	18	3 Apr	6 Oct
33.	Curlew	0	6	4	0	0	0	0	0	23	0	0	33	23	10	9 (25 Oct)	14	7	29 Mar	30 Oct
34.	Bar-tailed Godwit	0	0	120	23	0	0	0	43	9	0	0	195	52	143	81 (25 Apr)	38	19	3 Apr	28 Oct
35.	Snipe	0	0	0	0	0	0	0	1	0	0	0	1	1	0	1 (16 Sep)	2	1	16 Sep	16 Sep
36.	Grey Phalarope	0	0	0	0	0	0	0	0	2	0	0	2	1	1	1 ( 9 Oct)	4	2	9 Oct	28 Oct
37.	Common Sandpiper	0	0	0	0	0	0	0	8	0	0	0	8	8	0	8 ( 4 Sep)	2	1	4 Sep	4 Sep
38.	Redshank	0	0	1	9	0	0	0	95	1	0	0	106	96	10	95 (16 Sep)	10	5	3 Apr	5 Oct
39.	Greenshank	0	0	18	1	0	0	0	0	0	0	0	19	0	19	16 (26 Apr)	6	3	26 Apr	6 May
40.	Turnstone	0	0	1	24	0	0	0	18	6	0	0	49	24	25	13 (16 Sep)	24	12	26 Apr	27 Oct
41.	Knot	0	0	0	288	0	0	1	24	8	0	0	321	32	289	178 ( 5 May)	30	15	4 May	24 Oct
42.	Ruff	0	0	0	0	0	0	0	0	2	0	0	2	2	0	2 ( 5 Oct)	2	1	5 Oct	5 Oct
43.	wader sp.	0	27	6	31	0	0	0	16	4	0	0	84	11	73	20 ( 4 May)	26	13	8 Mar	25 Oct
44.	Curlew Sandpiper	0	0	0	0	0	0	0	2	0	0	0	2	2	0	1 (14 Sep)	4	2	14 Sep	16 Sep
45.	Sanderling	0	13	17	825	0	0	8	51	159	0	0	1073	178	895	208 (21 May)	62	31	8 Mar	28 Oct
46.	Dunlin	1	43	6	136	0	0	0	46	563	0	0	795	606	189	316 (24 Oct)	56	28	6 Feb	28 Oct
47.	Purple Sandpiper	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 (27 Oct)	2	1	27 Oct	27 Oct
48.	Little / Temminck's Stint	0	0	0	0	0	0	0	1	0	0	0	1	1	0	1 ( 5 Sep)	2	1	5 Sep	5 Sep
49.	Calidris sp.	0	10	9	67	0	0	0	17	16	0	0	119	33	86	27 (14 May)	26	13	8 Mar	28 Oct
50.	Little Tern	0	0	170	87	0	0	0	5	0	0	0	262	7	255	117 (18 Apr)	28	14	18 Apr	21 Sep
51.	Gull-billed Tern	0	0	0	3	0	0	0	0	0	0	0	3	0	3	3 ( 6 May)	2	1	6 May	6 May
52.	Black Tern	0	0	12	160	0	0	0	12	0	0	0	184	12	172	45 ( 6 May)	30	15	18 Apr	21 Sep
53.	Arctic Tern	0	0	86	121	0	0	0	13	8	0	0	228	19	209	49 (20 Apr)	34	17	18 Apr	28 Oct
54.	Common/Arctic Tern	0	0	120	3561	0	0	0	348	19	0	0	4048	366	3682	1251 ( 4 May)	46	23	26 Apr	25 Oct
55.	Common Tern	0	0	2140	1802	0	0	8	16	0	0	0	3966	103	3863	584 (14 May)	34	17	9 Apr	16 Sep
56.	Sandwich Tern	0	9	908	372	0	0	54	654	58	0	0	2055	723	1332	267 (14 Sep)	70	35	29 Mar	22 Oct
57.	Little Gull	0	10	569	21	0	0	0	0	236	1	0	837	228	609	187 (26 Apr)	42	21	13 Mar	9 Nov
58.	Kittiwake	0	1	0	0	0	0	0	0	202	1	0	204	198	6	71 (26 Oct)	18	9	13 Mar	9 Nov
59.	Sabine's Gull	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 (27 Oct)	2	1	27 Oct	27 Oct
60.	Black-headed Gull	21	303	293	106	0	0	56	210	528	40	0	1557	819	738	360 (10 Oct)	46	23	6 Feb	9 Nov
	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
61.	Mediterranean Gull	0	2	5	2	0	0	0	2	2	0	0	13	6	7	2 (18 Apr)	22	11	9 Mar	30 Oct
62.	Common Gull	0	40	165	23	0	0	1	14	98	25	0	366	152	214	95 (28 Apr)	36	18	9 Mar	9 Nov
63.	Caspian Gull	0	0	0	0	0	0	0	0	1	1	0	2	2	0	1 ( 4 Oct)	4	2	4 Oct	9 Nov
64.	Herring Gull	13	157	50	12	0	0	12	12	0	20	0	276	39	237	128 ( 9 Mar)	20	10	6 Feb	9 Nov
65.	Great Black-backed Gull	0	2	2	1	0	0	0	8	19	3	14	49	43	6	14 ( 9 Dec)	32	16	8 Mar	9 Dec
66.	Lesser Black-backed Gull	0	456	69	117	0	0	6	529	27	3	0	1207	563	644	450 (16 Sep)	40	20	8 Mar	9 Nov
67.	Long-tailed Skua	0	0	0	0	0	0	0	4	1	0	0	5	5	0	2 ( 5 Sep)	8	4	4 Sep	5 Oct
68.	skua sp.	0	0	0	0	0	0	0	7	9	0	0	16	14	2	3 (21 Sep)	20	10	14 Sep	27 Oct
69.	Arctic Skua	0	0	0	0	0	0	1	32	55	0	0	88	68	20	17 ( 4 Oct)	32	16	23 Aug	27 Oct
70.	Pomarine Skua	0	0	0	0	0	0	0	0	3	0	0	3	2	1	2 ( 9 Oct)	4	2	9 Oct	24 Oct
71.	Great Skua	0	0	0	0	0	0	0	6	4	0	0	10	10	0	3 (17 Sep)	14	7	4 Sep	12 Oct
72.	Razorbill	0	0	0	0	0	0	0	0	0	1	0	1	1	0	1 ( 9 Nov)	2	1	9 Nov	9 Nov
73.	Razorbill/Guillemot	0	0	0	0	0	0	0	10	76	2	0	88	58	30	30 (12 Oct)	34	17	11 Sep	9 Nov
74.	Little Auk	0	0	0	0	0	0	0	0	22	0	0	22	19	3	12 (28 Oct)	6	3	26 Oct	28 Oct
75.	Guillemot	0	0	0	0	0	0	0	8	14	0	0	22	15	7	4 ( 5 Sep)	20	10	5 Sep	28 Oct
76.	Red-throated Diver	6	24	14	2	0	0	0	6	81	33	110	276	245	31	110 ( 9 Dec)	56	28	6 Feb	9 Dec
77.	Black-throated Diver	0	0	0	0	0	0	0	0	0	0	1	1	1	0	1 ( 9 Dec)	2	1	9 Dec	9 Dec
78.	diver sp.	0	0	1	2	0	0	0	2	4	0	0	9	7	2	2 (12 Oct)	16	8	18 Apr	27 Oct
79.	Leach's Petrel	0	0	0	0	0	0	0	4	10	0	0	14	14	0	7 (26 Oct)	12	6	11 Sep	26 Oct
80.	Sooty Shearwater	0	0	0	0	0	0	0	49	36	0	0	85	85	0	42 (16 Sep)	16	8	5 Sep	27 Oct
81.	Manx Shearwater	0	0	0	0	0	0	0	76	0	0	0	76	75	1	69 (16 Sep)	8	4	16 Sep	21 Sep
82.	Balearic Shearwater	0	0	0	0	0	0	0	1	0	0	0	1	1	0	1 (16 Sep)	2	1	16 Sep	16 Sep
83.	shearwater sp.	0	0	0	0	0	0	0	2	0	0	0	2	2	0	2 (16 Sep)	2	1	16 Sep	16 Sep
84.	Gannet	0	12	9	4	0	0	0	182	310	114	20	651	598	53	114 ( 9 Nov)	68	34	8 Mar	9 Dec
85.	Cormorant	40	216	278	1017	0	0	29	563	531	55	56	2785	1291	1494	452 (22 May)	86	43	6 Feb	9 Dec
86.	Spoonbill	0	0	3	0	0	0	0	110	0	0	0	113	110	3	60 ( 5 Sep)	6	3	9 Apr	22 Sep
87.	Great White Egret	0	0	0	2	0	0	0	0	0	0	0	2	0	2	2 (14 May)	2	1	14 May	14 May
88.	Grey Heron	0	3	4	2	0	0	1	4	1	2	0	17	7	10	4 ( 9 Apr)	18	9	8 Mar	9 Nov
89.	Osprey	0	0	0	0	0	0	0	1	0	0	0	1	1	0	1 ( 8 Sep)	2	1	8 Sep	8 Sep
90.	Sparrowhawk	0	0	0	0	0	0	0	0	0	1	0	1	1	0	1 ( 9 Nov)	2	1	9 Nov	9 Nov
	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
91.	Marsh Harrier	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (14 May)	2	1	14 May	14 May
92.	Kestrel	0	0	0	0	0	0	0	1	0	0	0	1	1	0	1 ( 8 Sep)	2	1	8 Sep	8 Sep
93.	Hobby	0	0	1	0	0	0	0	2	0	0	0	3	2	1	2 ( 4 Sep)	4	2	20 Apr	4 Sep
94.	Peregrine	0	0	0	0	0	0	1	1	3	0	0	5	4	1	2 (10 Oct)	8	4	23 Aug	12 Oct
95.	Jackdaw	0	0	8	0	0	0	0	0	0	0	0	8	0	8	8 (28 Apr)	2	1	28 Apr	28 Apr
96.	Carrion Crow	0	0	2	0	0	0	0	0	0	0	0	2	2	0	2 ( 3 Apr)	2	1	3 Apr	3 Apr
97.	Blue Tit	0	0	0	0	0	0	0	0	85	1	0	86	86	0	85 (22 Oct)	4	2	22 Oct	9 Nov
98.	Wood Lark	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 ( 9 Oct)	2	1	9 Oct	9 Oct
99.	Skylark	0	0	0	0	0	0	0	0	22	1	0	23	23	0	12 (28 Oct)	12	6	9 Oct	9 Nov
100.	Sand Martin	0	0	2	1	0	0	0	0	0	0	0	3	0	3	2 (25 Apr)	4	2	25 Apr	5 May
101.	Swallow	0	0	20	38	0	0	0	17	0	0	0	75	17	58	17 (14 May)	26	13	18 Apr	18 Sep
102.	House Martin	0	0	0	0	0	0	0	3	0	0	0	3	3	0	2 ( 5 Sep)	4	2	4 Sep	5 Sep
103.	Starling	0	5	0	0	0	0	0	0	45923	3250	0	49178	49173	5	42000 (30 Oct)	18	9	13 Mar	9 Nov
104.	Redwing	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 (24 Oct)	2	1	24 Oct	24 Oct
105.	Black Redstart	0	0	0	0	0	0	0	0	2	0	0	2	2	0	1 (10 Oct)	4	2	10 Oct	26 Oct
106.	Wheatear	0	0	0	0	0	0	0	2	0	0	0	2	2	0	2 ( 4 Sep)	2	1	4 Sep	4 Sep
107.	Blue-headed Wagtail	0	0	0	2	0	0	0	0	0	0	0	2	0	2	2 (14 May)	2	1	14 May	14 May
108.	Yellow wagtail sp.	0	0	7	2	0	0	0	6	0	0	0	15	6	9	6 (14 Sep)	8	4	18 Apr	14 Sep
109.	Grey Wagtail	0	0	0	0	0	0	0	1	15	0	0	16	16	0	8 (10 Oct)	10	5	14 Sep	22 Oct
110.	White Wagtail	0	5	0	0	0	0	0	0	0	0	0	5	0	5	2 ( 9 Mar)	6	3	9 Mar	16 Mar
111.	alba wagtail sp.	0	1	0	0	0	0	0	31	3	1	0	36	35	1	26 ( 5 Sep)	14	7	29 Mar	9 Nov
112.	Meadow Pipit	0	2	0	0	0	0	0	62	584	7	0	655	653	2	295 (10 Oct)	32	16	13 Mar	9 Nov
113.	Tree Pipit	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 ( 9 Oct)	2	1	9 Oct	9 Oct
114.	Rock Pipit	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 (28 Oct)	2	1	28 Oct	28 Oct
115.	Chaffinch	0	0	0	0	0	0	0	0	5349	33	0	5382	5382	0	2780 (30 Oct)	12	6	9 Oct	9 Nov
116.	Brambling	0	0	0	0	0	0	0	0	15	2	0	17	17	0	15 (30 Oct)	4	2	30 Oct	9 Nov
117.	Greenfinch	0	0	0	0	0	0	0	0	3	0	0	3	3	0	2 (10 Oct)	4	2	10 Oct	22 Oct
118.	Linnet	0	0	0	0	0	0	0	0	2	0	0	2	2	0	2 (22 Oct)	2	1	22 Oct	22 Oct
119.	Redpoll	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 (22 Oct)	2	1	22 Oct	22 Oct
120.	Crossbill	0	0	0	0	0	0	0	2	0	0	0	2	2	0	2 (14 Sep)	2	1	14 Sep	14 Sep
	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
121.	Siskin	0	0	0	0	0	0	0	0	71	19	0	90	90	0	67 (22 Oct)	8	4	9 Oct	9 Nov
122.	Reed Bunting	0	0	0	0	0	0	0	0	3	2	0	5	5	0	2 ( 9 Oct)	6	3	9 Oct	9 Nov
	Other species
	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Harbour Porpoise	0	3	2	0	0	0	0	1	0	0	1	7	3	4	3 (13 Mar)	8	4	13 Mar	9 Dec
2.	Common Seal	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 (24 Oct)	2	1	24 Oct	24 Oct
	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
	Totals	152	3494	6482	10615	0	0	439	4410	56925	3643	261	86421	65567	20854		100	50
	Observation hours	1:00	10:11	13:10	17:59	0:00	0:00	2:00	37:50	55:50	1:30	1:30	141:00

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Trektellen

Totals Katwijk - Savoy (zeetrek) 2025