Select until 15 January

Totals Maasvlakte II 2016 - 2025

	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
1.	Dark-bellied Brent Goose	672	4394	448	1591	3072	2403	185	2606	229	0	15600	1733	0	4394 (2017)
2.	Black Brant	0	0	0	0	1	0	0	1	0	0	2	0.2	0	1 (2020)
3.	Canada Goose	4	0	0	7	3	5	2	0	1	0	22	2.4	0	7 (2019)
4.	Canada X Greylag Goose	0	0	1	0	0	0	0	0	0	0	1	0.1	0	1 (2018)
5.	Barnacle Goose	4	0	39	0	2	65	1	0	0	0	111	12	0	65 (2021)
6.	Greylag Goose	13	62	103	19	15	42	9	2	25	0	290	32	7	103 (2018)
7.	goose sp.	10	82	80	0	2	25	0	0	0	0	199	22	0	82 (2017)
8.	Pink-footed Goose	0	2	90	0	0	0	0	0	0	0	92	10.2	0	90 (2018)
9.	Eurasian White-fronted Goose	22	0	1	0	40	0	0	0	0	0	63	7	0	40 (2020)
10.	Mute Swan	0	8	0	3	0	2	7	1	7	0	28	3.1	0	8 (2017)
11.	Whooper Swan	25	0	0	0	0	3	0	0	0	0	28	3.1	0	25 (2016)
12.	Egyptian Goose	3	9	26	29	37	15	24	3	5	0	151	17	2	37 (2020)
13.	Shelduck	80	198	38	51	36	28	26	175	11	0	643	71	0	198 (2017)
14.	Garganey	0	1	0	0	0	1	0	1	0	0	3	0.3	0	1 (2017)
15.	Shoveler	12	73	16	7	6	34	0	0	0	0	148	16	0	73 (2017)
16.	Gadwall	1	0	2	0	0	10	9	0	2	0	24	2.7	0	10 (2021)
17.	Wigeon	309	275	61	41	103	355	32	231	121	0	1528	170	4	355 (2021)
18.	Mallard	6	8	1	0	2	0	3	0	0	0	20	2.2	1	8 (2017)
19.	Pintail	19	120	3	0	20	57	8	194	52	0	473	53	0	194 (2023)
20.	Teal	55	272	66	21	26	196	4	72	51	0	763	85	13	272 (2017)
21.	duck sp.	0	28	27	20	17	29	10	2	8	0	141	16	0	29 (2021)
22.	Pochard	0	0	0	0	0	0	0	0	3	0	3	0.3	0	3 (2024)
23.	Tufted Duck	4	9	1	2	0	3	14	3	1	0	37	4.1	0	14 (2022)
24.	Scaup	0	1	0	0	6	0	0	0	0	0	7	0.8	0	6 (2020)
25.	Eider	278	160	131	103	84	116	59	74	81	0	1086	121	18	278 (2016)
26.	Velvet Scoter	49	12	19	26	7	25	7	22	15	0	182	20	1	49 (2016)
27.	Common Scoter	3647	3282	2482	1410	2853	4202	729	3431	1692	0	23728	2636	26	4202 (2021)
28.	Long-tailed Duck	0	3	0	0	1	1	0	0	0	0	5	0.6	0	3 (2017)
29.	Goldeneye	12	8	0	1	2	2	3	3	2	0	33	3.7	0	12 (2016)
30.	Goosander	0	1	0	4	1	0	0	5	2	0	13	1.4	0	5 (2023)
31.	Red-breasted Merganser	290	269	134	146	150	204	91	201	155	0	1640	182	0	290 (2016)
32.	Swift	2	3	0	0	1	0	0	3	0	0	9	1	0	3 (2017)
33.	Woodpigeon	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2022)
34.	Red-necked Grebe	0	0	1	0	0	0	0	1	0	0	2	0.2	0	1 (2018)
35.	Great Crested Grebe	260	105	110	72	33	77	54	113	56	0	880	98	39	260 (2016)
36.	Slavonian Grebe	2	0	0	0	0	0	0	0	0	0	2	0.2	0	2 (2016)
37.	Black-necked Grebe	0	0	0	1	0	0	0	1	0	0	2	0.2	0	1 (2019)
38.	Oystercatcher	49	87	109	36	43	64	58	94	20	0	560	62	12	109 (2018)
39.	Avocet	5	1	11	0	0	0	0	0	1	0	18	2	0	11 (2018)
40.	Grey Plover	28	30	7	14	77	106	9	154	0	0	425	47	0	154 (2023)
41.	Golden Plover	0	1	5	13	0	5	4	25	0	0	53	5.9	0	25 (2023)
42.	Dotterel	0	1	0	0	0	0	0	0	0	0	1	0.1	0	1 (2017)
43.	Ringed Plover	32	49	28	5	1	49	33	9	6	0	212	24	1	49 (2017)
44.	Lapwing	0	0	9	0	0	0	0	0	2	0	11	1.2	0	9 (2018)
45.	Whimbrel	13	16	61	12	5	58	4	55	14	0	238	26	1	61 (2018)
46.	Curlew	40	43	17	23	13	16	7	45	4	0	208	23	0	45 (2023)
47.	Bar-tailed Godwit	917	914	37	2	233	114	2	17	257	0	2493	277	1	917 (2016)
48.	Black-tailed Godwit	0	2	0	0	0	1	0	0	0	0	3	0.3	3	2 (2017)
49.	Jack Snipe	0	0	0	0	0	0	0	0	2	0	2	0.2	0	2 (2024)
50.	Woodcock	2	0	0	0	0	0	0	0	2	0	4	0.4	0	2 (2016)
	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
51.	Snipe	1	1	0	0	0	0	1	2	0	0	5	0.6	0	2 (2023)
52.	Grey Phalarope	0	5	1	1	0	0	0	5	2	0	14	1.6	0	5 (2017)
53.	Green Sandpiper	0	0	0	0	0	0	0	2	0	0	2	0.2	0	2 (2023)
54.	Redshank	3	17	0	16	5	2	0	1	1	0	45	5	0	17 (2017)
55.	Greenshank	0	3	0	2	0	0	0	0	0	0	5	0.6	0	3 (2017)
56.	Turnstone	5	16	11	9	12	13	14	20	17	0	117	13	0	20 (2023)
57.	Knot	118	105	4	22	12	206	0	14	2	0	483	54	0	206 (2021)
58.	Ruff	0	1	0	0	0	0	0	0	0	0	1	0.1	0	1 (2017)
59.	wader sp.	17	79	15	13	142	101	16	188	8	0	579	64	0	188 (2023)
60.	small wader	0	0	0	0	0	0	0	2	0	0	2	0.2	0	2 (2023)
61.	Curlew Sandpiper	0	0	0	0	0	2	0	1	0	0	3	0.3	0	2 (2021)
62.	Sanderling	101	319	38	90	285	133	98	181	102	0	1347	150	11	319 (2017)
63.	Dunlin	171	439	51	220	349	332	133	3701	57	0	5453	606	0	3701 (2023)
64.	Purple Sandpiper	3	2	0	0	8	5	0	3	0	0	21	2.3	0	8 (2020)
65.	Little Stint	0	4	0	0	0	1	0	3	0	0	8	0.9	0	4 (2017)
66.	Calidris sp.	0	0	11	0	0	0	0	0	0	0	11	1.2	0	11 (2018)
67.	Little Tern	181	21	112	26	4	71	48	6	9	0	478	53	0	181 (2016)
68.	Gull-billed Tern	0	1	0	0	0	0	0	1	0	0	2	0.2	0	1 (2017)
69.	Black Tern	13	84	54	21	8	1553	5	18	0	0	1756	195	0	1553 (2021)
70.	Arctic Tern	0	36	8	16	4	42	0	9	23	0	138	15	0	42 (2021)
71.	Common/Arctic Tern	422	107	2	1000	156	152	0	1201	1662	0	4702	522	0	1662 (2024)
72.	Common Tern	572	1253	606	439	630	20065	2860	1441	28	0	27894	3099	54	20065 (2021)
73.	sterna sp.	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2022)
74.	Sandwich Tern	544	2720	2152	2402	1720	11140	620	10917	604	0	32819	3647	27	11140 (2021)
75.	Little Gull	174	804	85	1837	1506	1094	32	1966	264	0	7762	862	500	1966 (2023)
76.	Kittiwake	1088	647	176	517	1189	1684	336	9665	910	0	16212	1801	43	9665 (2023)
77.	Sabine's Gull	0	7	0	2	1	5	2	3	3	0	23	2.6	0	7 (2017)
78.	Black-headed Gull	757	2591	127	686	965	1491	3353	545	361	0	10876	1208	154	3353 (2022)
79.	Mediterranean Gull	0	2	3	1	2	10	6	8	2	0	34	3.8	0	10 (2021)
80.	Common Gull	505	1082	31	0	478	1341	976	6359	1602	0	12374	1375	10	6359 (2023)
81.	Caspian Gull	1	2	0	0	0	0	0	10	8	0	21	2.3	0	10 (2023)
82.	Herring Gull	129	0	0	0	107	218	146	290	205	0	1095	122	54	290 (2023)
83.	Yellow-legged Gull	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2020)
84.	Great Black-backed Gull	84	73	15	0	129	284	162	150	185	0	1082	120	10	284 (2021)
85.	Glaucous Gull	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2022)
86.	Lesser Black-backed Gull	30	0	51	1	375	2540	7914	25130	5288	0	41329	4592	48	25130 (2023)
87.	Laridae sp.	0	0	0	0	0	2	0	0	2	0	4	0.4	0	2 (2021)
88.	Iceland Gull	0	0	1	0	0	0	0	1	0	0	2	0.2	0	1 (2018)
89.	Long-tailed Skua	1	13	1	2	0	13	3	6	2	0	41	4.6	0	13 (2017)
90.	skua sp.	17	72	17	2	7	8	2	10	8	0	143	16	0	72 (2017)
91.	Arctic Skua	55	357	52	53	55	556	49	225	74	0	1476	164	6	556 (2021)
92.	Pomarine Skua	9	46	16	15	6	18	0	15	4	0	129	14	0	46 (2017)
93.	Great Skua	16	461	37	9	10	21	0	16	4	0	574	64	1	461 (2017)
94.	Razorbill	68	29	10	16	75	34	9	609	3	0	853	95	38	609 (2023)
95.	Razorbill/Guillemot	2645	1025	775	663	1395	3729	1595	6049	158	0	18034	2004	38	6049 (2023)
96.	Little Auk	11	0	0	1	3	2	0	0	7	0	24	2.7	0	11 (2016)
97.	Guillemot	172	212	4	29	6	62	13	16	3	0	517	57	16	212 (2017)
98.	Red-throated Diver	1957	682	549	847	1393	2065	946	1398	1100	0	10937	1215	40	2065 (2021)
99.	Black-throated Diver	3	14	3	5	7	27	7	26	4	0	96	10.7	0	27 (2021)
100.	Great Northern Diver	1	1	0	1	1	0	0	4	4	0	12	1.3	0	4 (2023)
	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
101.	diver sp.	273	663	233	292	47	86	14	3	1	0	1612	179	2	663 (2017)
102.	Wilson's Storm-Petrel	0	1	0	0	0	0	0	0	0	0	1	0.1	0	1 (2017)
103.	Storm Petrel	0	0	0	0	0	0	0	2	0	0	2	0.2	0	2 (2023)
104.	Leach's Petrel	0	58	14	1	5	20	2	4	1	0	105	12	0	58 (2017)
105.	Fulmar	2	29	1	0	1	21	2	1	1	0	58	6.4	0	29 (2017)
106.	Sooty Shearwater	52	21	7	3	29	56	28	13	114	0	323	36	0	114 (2024)
107.	Manx Shearwater	4	57	11	10	9	1	1	4	2	0	99	11	0	57 (2017)
108.	Balearic Shearwater	0	1	0	0	2	0	0	0	1	0	4	0.4	0	2 (2020)
109.	shearwater sp.	0	0	0	0	0	2	2	1	1	0	6	0.7	0	2 (2021)
110.	Gannet	3440	1973	762	811	1490	2391	1869	5267	1572	0	19575	2175	68	5267 (2023)
111.	Cormorant	506	1356	1094	478	452	2635	1311	545	300	0	8677	964	155	2635 (2021)
112.	Shag	1	0	1	0	0	0	0	0	0	0	2	0.2	0	1 (2016)
113.	Great White Egret	0	7	9	0	0	4	0	0	0	0	20	2.2	0	9 (2018)
114.	Grey Heron	3	4	9	2	1	12	1	17	0	0	49	5.4	0	17 (2023)
115.	Sparrowhawk	0	2	0	1	1	2	0	0	0	0	6	0.7	0	2 (2017)
116.	Marsh Harrier	0	2	2	0	0	1	0	1	0	0	6	0.7	0	2 (2017)
117.	Hen Harrier	0	0	1	0	7	0	1	0	0	0	9	1	0	7 (2020)
118.	Pallid Harrier	0	1	0	0	0	0	1	0	0	0	2	0.2	0	1 (2017)
119.	Common Buzzard	0	0	0	0	0	2	0	0	0	0	2	0.2	0	2 (2021)
120.	Short-eared Owl	2	1	1	1	1	3	0	0	0	0	9	1	0	3 (2021)
121.	Kestrel	2	3	1	1	0	2	0	3	0	0	12	1.3	4	3 (2017)
122.	Merlin	1	2	0	0	1	2	0	0	0	0	6	0.7	0	2 (2017)
123.	Hobby	0	1	1	0	0	0	0	0	0	0	2	0.2	0	1 (2017)
124.	Peregrine	1	3	2	1	0	1	0	0	0	0	8	0.9	0	3 (2017)
125.	Magpie	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2020)
126.	Jackdaw	10	5	21	3	40	0	0	5	21	0	105	12	0	40 (2020)
127.	Carrion Crow	4	22	19	27	6	3	3	5	3	0	92	10.2	6	27 (2019)
128.	Hooded Crow	0	0	1	0	0	0	0	0	0	0	1	0.1	0	1 (2018)
129.	Wood Lark	5	0	0	0	0	0	0	0	0	0	5	0.6	0	5 (2016)
130.	Skylark	503	214	39	10	37	10	7	18	0	0	838	93	0	503 (2016)
131.	Sand Martin	0	0	1	0	1	6	0	0	0	0	8	0.9	0	6 (2021)
132.	Swallow	59	84	51	34	10	73	25	5	0	0	341	38	0	84 (2017)
133.	Whitethroat	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2021)
134.	Starling	1378	3515	355	12835	6001	2330	154	8565	209	0	35342	3927	0	12835 (2019)
135.	Song Thrush	0	0	2	0	6	0	0	0	0	0	8	0.9	3	6 (2020)
136.	Redwing	0	0	0	0	87	0	0	0	0	0	87	9.7	0	87 (2020)
137.	Blackbird	2	0	0	0	0	0	0	0	1	0	3	0.3	0	2 (2016)
138.	Fieldfare	0	0	7	0	0	0	1	3	1	0	12	1.3	0	7 (2018)
139.	Robin	0	0	0	1	0	0	0	0	0	0	1	0.1	0	1 (2019)
140.	Whinchat	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2021)
141.	Blue-headed Wagtail	17	0	6	2	0	3	6	0	0	0	34	3.8	1	17 (2016)
142.	Yellow wagtail sp.	0	9	0	0	0	1	0	0	0	0	10	1.1	0	9 (2017)
143.	Grey Wagtail	1	5	5	11	1	1	0	1	0	0	25	2.8	0	11 (2019)
144.	White Wagtail	9	11	4	4	4	21	8	2	3	0	66	7.3	10	21 (2021)
145.	alba wagtail sp.	0	0	6	0	0	1	1	0	0	0	8	0.9	0	6 (2018)
146.	Meadow Pipit	225	160	101	213	69	81	37	24	6	0	916	102	11	225 (2016)
147.	Tree Pipit	2	0	0	0	0	0	0	0	0	0	2	0.2	0	2 (2016)
148.	Rock Pipit	0	0	0	1	1	3	0	0	0	0	5	0.6	0	3 (2021)
149.	pipit sp.	0	2	0	0	0	0	0	0	0	0	2	0.2	0	2 (2017)
150.	Chaffinch	17	108	32	130	122	48	2	2	2	0	463	51	0	130 (2019)
	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
151.	Brambling	0	0	2	31	0	1	0	0	0	0	34	3.8	0	31 (2019)
152.	Linnet	21	43	7	2	3	29	12	40	9	0	166	18	2	43 (2017)
153.	Lesser Redpoll	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2020)
154.	redpoll sp.	0	0	2	0	0	0	0	1	0	0	3	0.3	0	2 (2018)
155.	Siskin	0	0	2	2217	14	30	35	15	0	0	2313	257	0	2217 (2019)
156.	Lapland Bunting	2	1	0	0	4	3	0	1	0	0	11	1.2	0	4 (2020)
157.	Snow Bunting	1	123	2	0	8	0	0	1	0	0	135	15	1	123 (2017)
158.	Reed Bunting	0	0	0	0	2	0	0	0	0	0	2	0.2	0	2 (2020)
159.	passerine sp.	0	0	0	0	4	0	0	0	0	0	4	0.4	0	4 (2020)
	Other species
1.	Harbour Porpoise	14	15	5	3	6	9	3	5	1	0	61	6.8	2	15 (2017)
2.	Grey seal	0	0	0	0	0	0	3	1	1	0	5	0.6	0	3 (2022)
3.	Common Seal	2	2	0	0	1	0	1	0	0	0	6	0.7	0	2 (2016)
4.	Common / Grey seal	1	0	0	0	0	0	0	0	0	0	1	0.1	0	1 (2016)
	Other species
1.	European Peacock	1	0	0	0	0	0	0	0	0	0	1	0.1	0	1 (2016)
2.	white sp. (butterfly)	2	0	0	0	0	0	0	0	0	0	2	0.2	0	2 (2016)
	Other species
1.	Bumblebee sp.	7	0	0	0	0	0	1	0	0	0	8	0.9	0	7 (2016)
	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
	Totals	23309	32366	12001	29748	26413	65231	24274	92316	17793	0	323451	35939	1444
	Observation hours	127:06	175:14	105:11	98:35	130:05	225:22	100:40	147:05	76:33		1,185:51	131:46

Trektellen

Totals Maasvlakte II 2016 - 2025