Select until 2 May

Totals Westerslag, Texel 2016 - 2025

	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
1.	Dark-bellied Brent Goose	691	2095	740	1237	1577	2533	3841	4324	2952	560	20550	2055	0	4324 (2023)
2.	Pale-bellied Brent Goose	0	0	0	0	0	8	0	0	0	0	8	0.8	0	8 (2021)
3.	Canada Goose	0	0	0	0	1	4	2	2	1	0	10	1	0	4 (2021)
4.	Barnacle Goose	0	65	37	11	199	17	12	32	0	40	413	41	0	199 (2020)
5.	Greylag Goose	4	172	81	74	203	476	366	328	359	325	2388	239	12	476 (2021)
6.	Pink-footed Goose	0	0	0	0	0	0	0	4	0	0	4	0.4	0	4 (2023)
7.	Tundra Bean Goose	0	0	1	0	7	0	28	150	5	29	220	22	0	150 (2023)
8.	Eurasian White-fronted Goose	1	1	1	98	78	36	3	19	0	0	237	24	0	98 (2019)
9.	Black Swan	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2020)
10.	Mute Swan	0	2	0	8	6	35	0	1	5	0	57	5.7	0	35 (2021)
11.	Bewick's Swan	0	0	0	2	0	0	0	2	6	0	10	1	0	6 (2024)
12.	Egyptian Goose	1	35	42	42	106	58	90	64	91	224	753	75	1	224 (2025)
13.	Shelduck	0	24	52	58	45	71	38	99	78	24	489	49	12	99 (2023)
14.	Ruddy Shelduck	0	0	0	0	0	0	1	2	0	0	3	0.3	0	2 (2023)
15.	Garganey	0	3	0	0	0	0	3	1	0	0	7	0.7	0	3 (2017)
16.	Shoveler	2	69	19	13	199	20	67	28	24	67	508	51	6	199 (2020)
17.	Gadwall	0	19	13	7	51	6	25	27	32	16	196	20	1	51 (2020)
18.	Wigeon	39	230	156	170	602	489	320	413	357	78	2854	285	201	602 (2020)
19.	Mallard	9	0	2	2	9	11	5	8	19	9	74	7.4	0	19 (2024)
20.	Pintail	20	485	82	80	214	61	126	58	136	267	1529	153	0	485 (2017)
21.	Teal	59	715	304	234	601	1001	702	464	615	863	5558	556	18	1001 (2021)
22.	Pochard	0	0	0	2	3	8	2	1	0	0	16	1.6	0	8 (2021)
23.	Tufted Duck	6	8	13	17	18	40	33	4	21	1	161	16	1	40 (2021)
24.	Scaup	7	46	74	142	85	63	6	65	188	14	690	69	0	188 (2024)
25.	Eider	72	2314	936	2093	3868	7698	7533	5452	7520	3261	40747	4075	1283	7698 (2021)
26.	Surf Scoter	0	0	0	0	0	0	0	0	0	1	1	0.1	0	1 (2025)
27.	Velvet Scoter	8	78	38	107	202	308	211	254	157	106	1469	147	5	308 (2021)
28.	Common Scoter	7217	37723	22303	26762	64626	82987	49304	89618	60231	25729	466500	46650	1083	89618 (2023)
29.	Long-tailed Duck	0	6	5	22	10	17	9	8	10	10	97	9.7	0	22 (2019)
30.	Goldeneye	1	0	13	2	25	42	13	14	7	1	118	12	0	42 (2021)
31.	Smew	0	0	1	0	0	6	0	0	0	0	7	0.7	0	6 (2021)
32.	Goosander	0	2	9	4	16	11	2	2	10	3	59	5.9	0	16 (2020)
33.	Red-breasted Merganser	15	26	85	44	115	268	179	65	81	30	908	91	0	268 (2021)
34.	Swift	0	9	4	14	15	2	0	1	2	0	47	4.7	0	15 (2020)
35.	Stock Dove	0	0	0	0	0	1	4	3	0	0	8	0.8	0	4 (2022)
36.	Woodpigeon	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2023)
37.	dove (Columba) sp.	0	1	0	0	3	0	0	0	0	0	4	0.4	0	3 (2020)
38.	Little Grebe	0	0	0	0	0	1	0	0	2	0	3	0.3	0	2 (2024)
39.	Red-necked Grebe	3	5	28	44	11	38	19	5	12	4	169	17	1	44 (2019)
40.	Great Crested Grebe	8	99	175	148	73	381	817	257	721	201	2880	288	74	817 (2022)
41.	Slavonian Grebe	0	0	0	7	4	87	0	1	1	0	100	10	5	87 (2021)
42.	Black-necked Grebe	0	0	0	8	2	21	0	2	2	0	35	3.5	3	21 (2021)
43.	Black-necked / Slavonian Grebe	0	0	0	0	0	29	0	0	0	0	29	2.9	0	29 (2021)
44.	Oystercatcher	78	53	74	51	91	82	23	213	117	83	865	87	31	213 (2023)
45.	Avocet	0	0	2	0	5	0	0	0	0	0	7	0.7	0	5 (2020)
46.	Grey Plover	4	55	18	12	123	22	16	24	14	2	290	29	0	123 (2020)
47.	Golden Plover	4	5	8	0	16	7	1	3	12	0	56	5.6	0	16 (2020)
48.	Dotterel	0	0	0	1	0	0	0	0	0	0	1	0.1	0	1 (2019)
49.	Ringed Plover	7	32	25	0	11	14	46	35	26	0	196	20	0	46 (2022)
50.	Lapwing	0	0	10	61	1	8	430	0	4	1	515	52	0	430 (2022)
	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
51.	Whimbrel	7	14	55	106	49	20	10	18	53	0	332	33	1	106 (2019)
52.	Curlew	18	12	20	56	15	84	27	40	11	39	322	32	1	84 (2021)
53.	Bar-tailed Godwit	9	203	79	447	345	396	110	347	21	198	2155	216	2	447 (2019)
54.	Black-tailed Godwit	0	10	0	0	0	0	0	0	0	0	10	1	0	10 (2017)
55.	Jack Snipe	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2021)
56.	Woodcock	0	0	1	0	0	5	0	0	1	0	7	0.7	0	5 (2021)
57.	Snipe	1	2	8	1	5	1	39	6	0	0	63	6.3	0	39 (2022)
58.	Grey Phalarope	0	0	0	0	0	1	1	1	0	0	3	0.3	0	1 (2021)
59.	Common Sandpiper	5	5	1	5	0	1	12	2	2	0	33	3.3	0	12 (2022)
60.	Green Sandpiper	0	1	3	0	0	0	1	1	2	0	8	0.8	0	3 (2018)
61.	Redshank	0	41	3	0	30	12	5	82	9	0	182	18	0	82 (2023)
62.	Spotted Redshank	0	0	0	0	0	0	1	1	0	0	2	0.2	0	1 (2022)
63.	Greenshank	0	4	0	8	12	2	5	9	2	0	42	4.2	0	12 (2020)
64.	Turnstone	2	24	8	21	38	45	55	134	29	39	395	40	15	134 (2023)
65.	Knot	108	342	8	105	97	112	111	12	11	41	947	95	3	342 (2017)
66.	Ruff	0	0	0	0	1	0	0	1	0	0	2	0.2	0	1 (2020)
67.	Curlew Sandpiper	0	0	0	0	0	0	2	0	0	0	2	0.2	0	2 (2022)
68.	Sanderling	33	1052	809	594	2319	1585	1024	1402	823	621	10262	1026	515	2319 (2020)
69.	Dunlin	2	115	607	76	430	285	409	354	392	219	2889	289	0	607 (2018)
70.	Purple Sandpiper	0	0	9	0	1	6	2	4	0	0	22	2.2	0	9 (2018)
71.	Little Tern	33	81	50	283	127	324	45	140	118	29	1230	123	0	324 (2021)
72.	Gull-billed Tern	0	0	0	0	0	2	0	0	0	0	2	0.2	0	2 (2021)
73.	Black Tern	3	23	31	176	38	988	203	168	132	21	1783	178	0	988 (2021)
74.	White-winged Black Tern	0	0	0	0	0	2	0	0	1	0	3	0.3	0	2 (2021)
75.	Arctic Tern	43	214	3	81	37	15	39	43	114	0	589	59	0	214 (2017)
76.	Common/Arctic Tern	831	749	120	2140	526	31081	1264	9358	5472	1748	53289	5329	0	31081 (2021)
77.	Common Tern	607	2094	1351	3959	6570	24732	9222	2077	10992	5	61609	6161	8	24732 (2021)
78.	Sandwich Tern	4112	12507	12956	21910	25602	31801	25936	36226	17128	2145	190323	19032	30	36226 (2023)
79.	Little Gull	15	784	340	1045	2051	2662	768	2303	539	756	11263	1126	0	2662 (2021)
80.	Kittiwake	15	436	646	1659	7421	23015	4273	12236	2458	291	52450	5245	30	23015 (2021)
81.	Sabine's Gull	0	2	1	0	2	1	1	4	1	0	12	1.2	0	4 (2023)
82.	Black-headed Gull	851	3943	3838	8768	18076	11483	12626	4071	6505	1204	71365	7137	2032	18076 (2020)
83.	Mediterranean Gull	0	3	0	0	4	5	5	5	1	0	23	2.3	0	5 (2021)
84.	Common Gull	49	675	454	928	2741	712	236	56	454	583	6888	689	301	2741 (2020)
85.	Caspian Gull	0	0	0	2	3	14	18	21	6	2	66	6.6	0	21 (2023)
86.	Herring Gull	0	503	101	8275	5423	1108	2	2	6499	5710	27623	2762	1460	8275 (2019)
87.	Yellow-legged Gull	0	0	0	0	0	2	1	0	2	0	5	0.5	0	2 (2021)
88.	Great Black-backed Gull	15	156	355	196	136	885	1135	765	362	123	4128	413	16	1135 (2022)
89.	Glaucous Gull	0	0	0	0	0	3	1	0	0	0	4	0.4	0	3 (2021)
90.	Lesser Black-backed Gull	0	493	61	14907	8029	10410	2667	3930	8371	1111	49979	4998	1553	14907 (2019)
91.	Long-tailed Skua	0	1	0	0	2	5	1	6	1	0	16	1.6	0	6 (2023)
92.	skua sp.	0	49	2	4	6	3	18	13	2	0	97	9.7	0	49 (2017)
93.	Arctic Skua	9	141	328	292	138	1346	314	663	58	1	3290	329	4	1346 (2021)
94.	Pomarine Skua	3	25	41	14	19	38	14	13	2	0	169	17	1	41 (2018)
95.	Great Skua	8	400	56	75	40	32	11	25	3	1	651	65	1	400 (2017)
96.	Puffin	0	0	0	1	0	8	3	0	1	0	13	1.3	0	8 (2021)
97.	Black Guillemot	0	1	1	1	1	1	0	3	1	0	9	0.9	0	3 (2023)
98.	Razorbill	2	2	4	46	1	351	632	162	61	2	1263	126	30	632 (2022)
99.	Razorbill/Guillemot	1095	1680	4442	7710	14995	60188	23186	10353	7956	93	131698	13170	188	60188 (2021)
100.	Little Auk	0	3	3	0	5	13	5	2	3	0	34	3.4	0	13 (2021)
	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
101.	Guillemot	4	2	6	29	4	428	116	52	73	1	715	72	24	428 (2021)
102.	Red-throated Diver	1055	1629	4936	9122	6146	21771	15037	9630	9181	2521	81028	8103	133	21771 (2021)
103.	Black-throated Diver	3	15	26	23	43	78	35	37	64	7	331	33	4	78 (2021)
104.	Great Northern Diver	0	1	0	0	0	1	4	2	6	0	14	1.4	0	6 (2024)
105.	diver sp.	48	72	9	20	1	2	0	0	19	0	171	17	0	72 (2017)
106.	Storm Petrel	0	0	1	0	0	0	1	0	0	0	2	0.2	0	1 (2018)
107.	Leach's Petrel	0	1	1	1	1	1	4	16	1	0	26	2.6	0	16 (2023)
108.	Fulmar	2	4	11	6	5	21	5	11	31	1	97	9.7	0	31 (2024)
109.	Sooty Shearwater	133	10	77	8	32	11	372	137	51	0	831	83	0	372 (2022)
110.	Manx Shearwater	1	2	1	4	8	1	7	9	2	0	35	3.5	0	9 (2023)
111.	Balearic Shearwater	1	0	2	0	3	1	2	0	7	0	16	1.6	0	7 (2024)
112.	shearwater sp.	0	0	1	0	19	4	1	1	3	0	29	2.9	0	19 (2020)
113.	Gannet	547	1639	1680	3033	3563	7665	5069	9567	5117	1431	39311	3931	13	9567 (2023)
114.	Cormorant	1137	2163	2794	10032	5782	11762	14584	14062	7148	2331	71795	7180	565	14584 (2022)
115.	Spoonbill	0	0	0	1	0	24	0	0	0	0	25	2.5	0	24 (2021)
116.	Little Egret	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2024)
117.	Great White Egret	0	0	2	9	0	0	1	0	0	0	12	1.2	0	9 (2019)
118.	Grey Heron	0	10	26	26	17	11	3	18	37	0	148	15	0	37 (2024)
119.	Osprey	0	1	2	0	0	0	0	0	0	0	3	0.3	0	2 (2018)
120.	Sparrowhawk	1	0	1	0	0	0	0	0	0	0	2	0.2	0	1 (2016)
121.	Marsh Harrier	0	0	0	2	1	0	0	1	1	0	5	0.5	0	2 (2019)
122.	Hen Harrier	0	0	1	0	3	1	0	0	0	0	5	0.5	0	3 (2020)
123.	Short-eared Owl	0	0	0	0	0	0	2	2	0	0	4	0.4	0	2 (2022)
124.	Kestrel	0	1	0	3	3	0	0	1	1	0	9	0.9	0	3 (2019)
125.	Merlin	0	2	0	0	1	2	0	0	0	0	5	0.5	0	2 (2017)
126.	Hobby	0	1	0	0	0	0	1	0	0	0	2	0.2	0	1 (2017)
127.	Gyr Falcon	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2024)
128.	Peregrine	1	1	0	4	1	2	2	2	0	0	13	1.3	0	4 (2019)
129.	Jackdaw	0	25	0	2	0	0	0	14	0	8	49	4.9	0	25 (2017)
130.	Rook	0	1	0	0	0	0	2	0	2	0	5	0.5	0	2 (2022)
131.	Carrion Crow	0	7	1	7	0	2	0	1	1	1	20	2	1	7 (2017)
132.	Great Tit	0	0	1	0	0	0	0	0	0	0	1	0.1	0	1 (2018)
133.	Skylark	7	3	159	8	121	354	14	18	56	1	741	74	0	354 (2021)
134.	Shore Lark	0	6	0	0	0	2	0	2	0	0	10	1	0	6 (2017)
135.	Sand Martin	0	1	0	76	13	5	0	32	4	3	134	13	0	76 (2019)
136.	Swallow	47	75	66	76	29	27	124	138	41	0	623	62	0	138 (2023)
137.	House Martin	0	3	0	6	1	1	2	5	1	0	19	1.9	0	6 (2019)
138.	Starling	0	1214	562	2112	47205	12603	1405	2421	1297	27	68846	6885	0	47205 (2020)
139.	Song Thrush	0	0	0	6	0	0	0	0	0	0	6	0.6	0	6 (2019)
140.	Redwing	0	0	0	18	0	10	0	0	0	0	28	2.8	0	18 (2019)
141.	Blackbird	0	0	0	20	1	3	0	0	0	0	24	2.4	0	20 (2019)
142.	Fieldfare	3	0	0	0	0	0	0	15	0	0	18	1.8	0	15 (2023)
143.	Robin	0	0	0	12	1	0	0	0	0	0	13	1.3	0	12 (2019)
144.	Whinchat	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2022)
145.	Wheatear	0	1	0	1	1	1	0	0	0	1	5	0.5	0	1 (2017)
146.	Blue-headed Wagtail	10	0	34	44	0	3	2	8	0	0	101	10	0	44 (2019)
147.	Grey Wagtail	0	1	3	1	3	5	4	0	0	0	17	1.7	0	5 (2021)
148.	White Wagtail	1	26	11	6	7	32	7	16	3	0	109	11	9	32 (2021)
149.	Pied Wagtail	0	1	0	0	0	1	0	0	0	0	2	0.2	0	1 (2017)
150.	Richard's Pipit	0	0	0	1	0	0	0	0	0	0	1	0.1	0	1 (2019)
	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
151.	Meadow Pipit	29	5	193	132	8	69	116	187	36	0	775	78	3	193 (2018)
152.	Tree Pipit	0	0	0	0	1	0	0	1	0	0	2	0.2	0	1 (2020)
153.	Rock Pipit	4	50	2	8	1	6	3	1	2	0	77	7.7	0	50 (2017)
154.	Chaffinch	0	0	10	0	0	827	0	0	0	0	837	84	0	827 (2021)
155.	Brambling	0	0	0	0	0	6	0	0	0	0	6	0.6	0	6 (2021)
156.	finch sp.	0	0	0	0	0	0	0	0	16	0	16	1.6	0	16 (2024)
157.	Linnet	0	0	4	21	0	18	0	25	0	0	68	6.8	0	25 (2023)
158.	Lesser Redpoll	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2023)
159.	Goldfinch	0	5	0	0	0	0	0	0	0	0	5	0.5	0	5 (2017)
160.	Siskin	0	0	0	20	0	0	0	30	0	0	50	5	0	30 (2023)
161.	Lapland Bunting	0	0	0	0	0	1	1	2	2	0	6	0.6	0	2 (2023)
162.	Snow Bunting	13	21	16	1	5	14	7	16	6	0	99	9.9	8	21 (2017)
163.	Reed Bunting	0	0	0	0	0	3	0	1	0	0	4	0.4	0	3 (2021)
164.	passerine sp.	0	0	0	0	0	0	2	0	0	0	2	0.2	0	2 (2022)
	Other species
1.	Harbour Porpoise	3	0	1	17	26	63	62	39	43	12	266	27	0	63 (2021)
2.	Humpback whale	0	0	1	0	0	1	0	0	0	0	2	0.2	0	1 (2018)
3.	Grey seal	0	0	0	2	1	3	10	3	9	4	32	3.2	1	10 (2022)
4.	Common Seal	0	0	0	3	0	1	1	0	2	1	8	0.8	0	3 (2019)
5.	bat sp.	0	0	0	0	0	1	0	1	1	0	3	0.3	0	1 (2021)
	Other species
1.	European Peacock	0	0	0	0	0	0	0	0	3	0	3	0.3	0	3 (2024)
2.	Red Admiral	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2024)
	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
	Totals	19182	78166	62787	130391	231614	356601	185726	223638	165687	53281	1507073	150707	9689
	Observation hours	38:20	111:45	120:40	157:15	218:30	318:05	274:30	269:40	221:20	63:00	1,793:05	179:19

Trektellen

Totals Westerslag, Texel 2016 - 2025