Select until 11 May

Totals Willemstad 2016 - 2025

	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
1.	Dark-bellied Brent Goose	0	0	0	0	3	0	0	0	0	0	3	0.4	0	3 (2020)
2.	Canada Goose	0	0	0	0	225	226	8	6	22	13	500	71	0	226 (2021)
3.	Canada X Greylag Goose	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2021)
4.	Barnacle Goose	0	0	0	1726	5791	2164	24	682	129	580	11096	1585	800	5791 (2020)
5.	Bar-headed Goose	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2020)
6.	Greylag Goose	0	0	0	207	214	95	93	21	20	158	808	115	0	214 (2020)
7.	goose sp.	0	0	0	0	24	0	0	0	0	0	24	3.4	0	24 (2020)
8.	Tundra Bean Goose	0	0	0	307	29	0	102	0	16	23	477	68	0	307 (2019)
9.	Eurasian White-fronted Goose	0	0	0	2253	2131	2304	297	86	58	505	7634	1091	0	2304 (2021)
10.	Black Swan	0	0	0	0	0	0	2	0	0	0	2	0.3	0	2 (2022)
11.	Mute Swan	0	0	0	19	26	5	1	2	0	3	56	8	0	26 (2020)
12.	Bewick's Swan	0	0	0	0	0	12	14	0	0	0	26	3.7	0	14 (2022)
13.	Egyptian Goose	0	0	0	0	18	15	53	7	0	75	168	24	0	75 (2025)
14.	Shelduck	0	0	0	23	104	58	10	16	32	26	269	38	0	104 (2020)
15.	Ruddy Shelduck	0	0	0	7	13	0	1	0	0	0	21	3	0	13 (2020)
16.	Garganey	0	0	0	0	0	1	1	0	0	0	2	0.3	0	1 (2021)
17.	Shoveler	0	0	0	12	81	98	19	3	3	12	228	33	0	98 (2021)
18.	Gadwall	0	0	0	597	891	158	65	1	17	40	1769	253	70	891 (2020)
19.	Wigeon	0	0	0	286	332	1043	33	0	0	61	1755	251	0	1043 (2021)
20.	Mallard	0	0	0	22	18	4	4	0	4	21	73	10.4	0	22 (2019)
21.	Pintail	0	0	0	72	441	77	0	3	62	0	655	94	0	441 (2020)
22.	Teal	0	0	0	0	18	2	2	0	0	8	30	4.3	0	18 (2020)
23.	duck sp.	0	0	0	0	45	0	0	0	0	0	45	6.4	0	45 (2020)
24.	Pochard	0	0	0	0	0	30	0	0	1	4	35	5	0	30 (2021)
25.	Tufted Duck	0	0	0	107	114	47	21	6	13	47	355	51	0	114 (2020)
26.	Goldeneye	0	0	0	2	0	18	0	0	0	3	23	3.3	0	18 (2021)
27.	Smew	0	0	0	0	0	4	0	0	1	0	5	0.7	0	4 (2021)
28.	Goosander	0	0	0	11	6	8	4	0	7	3	39	5.6	0	11 (2019)
29.	Red-breasted Merganser	0	0	0	1	22	25	17	23	14	40	142	20	0	40 (2025)
30.	Swift	0	0	0	3581	9125	3399	539	1775	1038	2376	21833	3119	540	9125 (2020)
31.	Cuckoo	0	0	0	0	10	11	1	3	6	9	40	5.7	0	11 (2021)
32.	Stock Dove	0	0	0	0	75	46	111	94	98	95	519	74	0	111 (2022)
33.	Woodpigeon	0	0	0	435	1566	1347	655	1695	1120	1368	8186	1169	0	1695 (2023)
34.	dove (Columba) sp.	0	0	0	0	2	0	0	0	0	0	2	0.3	0	2 (2020)
35.	Turtle Dove	0	0	0	0	0	1	1	0	1	0	3	0.4	0	1 (2021)
36.	Collared Dove	0	0	0	3	19	17	8	24	8	1	80	11.4	0	24 (2023)
37.	Coot	0	0	0	0	0	3	0	0	0	0	3	0.4	0	3 (2021)
38.	Crane	0	0	0	0	0	28	57	0	0	0	85	12.1	0	57 (2022)
39.	Great Crested Grebe	0	0	0	0	2	4	2	1	1	4	14	2	0	4 (2021)
40.	flamingo sp.	0	0	0	0	18	30	0	0	0	0	48	6.9	0	30 (2021)
41.	Oystercatcher	0	0	0	315	202	144	45	3	26	64	799	114	0	315 (2019)
42.	Avocet	0	0	0	1	4	32	0	2	4	2	45	6.4	0	32 (2021)
43.	Grey Plover	0	0	0	0	0	0	0	2	0	0	2	0.3	0	2 (2023)
44.	Golden Plover	0	0	0	15	79	113	6	4	36	188	441	63	0	188 (2025)
45.	Dotterel	0	0	0	0	12	0	0	0	0	0	12	1.7	0	12 (2020)
46.	Ringed Plover	0	0	0	0	9	0	1	0	5	3	18	2.6	0	9 (2020)
47.	Little Ringed Plover	0	0	0	4	22	6	6	19	6	24	87	12.4	0	24 (2025)
48.	Lapwing	0	0	0	311	80	2771	311	24	165	468	4130	590	0	2771 (2021)
49.	Whimbrel	0	0	0	159	379	538	44	106	108	33	1367	195	0	538 (2021)
50.	Curlew	0	0	0	16	28	180	23	9	10	53	319	46	0	180 (2021)
	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
51.	Bar-tailed Godwit	0	0	0	0	1	6	0	0	0	0	7	1	0	6 (2021)
52.	Black-tailed Godwit	0	0	0	74	1074	444	288	45	153	151	2229	318	0	1074 (2020)
53.	Icelandic Black-tailed Godwit	0	0	0	0	6	0	0	0	0	0	6	0.9	0	6 (2020)
54.	Snipe	0	0	0	12	54	52	110	49	18	47	342	49	0	110 (2022)
55.	Common Sandpiper	0	0	0	6	9	1	0	4	15	1	36	5.1	0	15 (2024)
56.	Green Sandpiper	0	0	0	35	65	42	34	107	7	100	390	56	0	107 (2023)
57.	Wood Sandpiper	0	0	0	0	18	14	0	65	33	0	130	19	0	65 (2023)
58.	Redshank	0	0	0	25	109	23	8	23	16	24	228	33	0	109 (2020)
59.	Spotted Redshank	0	0	0	0	0	6	0	10	4	0	20	2.9	0	10 (2023)
60.	Greenshank	0	0	0	5	12	34	1	45	27	11	135	19	0	45 (2023)
61.	Turnstone	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2021)
62.	Ruff	0	0	0	28	49	96	5	70	37	36	321	46	0	96 (2021)
63.	wader sp.	0	0	0	0	17	0	0	0	3	0	20	2.9	0	17 (2020)
64.	Sanderling	0	0	0	0	10	0	0	0	0	0	10	1.4	0	10 (2020)
65.	Dunlin	0	0	0	2	5	5	1	1	0	0	14	2	0	5 (2020)
66.	Little Stint	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2021)
67.	Gull-billed Tern	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2020)
68.	Caspian Tern	0	0	0	1	0	0	0	0	0	0	1	0.1	0	1 (2019)
69.	Whiskered Tern	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2021)
70.	Black Tern	0	0	0	2	28	18	0	0	0	0	48	6.9	0	28 (2020)
71.	Common/Arctic Tern	0	0	0	0	3	0	0	0	0	0	3	0.4	0	3 (2020)
72.	Common Tern	0	0	0	25	141	14	5	2	7	14	208	30	0	141 (2020)
73.	Little Gull	0	0	0	0	91	146	0	0	0	2	239	34	0	146 (2021)
74.	Black-headed Gull	0	0	0	1013	1879	2065	41	333	149	1149	6629	947	0	2065 (2021)
75.	Mediterranean Gull	0	0	0	31	96	93	35	16	15	37	323	46	2	96 (2020)
76.	Common Gull	0	0	0	37	103	56	42	70	44	194	546	78	0	194 (2025)
77.	Caspian Gull	0	0	0	0	8	2	2	3	1	17	33	4.7	0	17 (2025)
78.	Herring Gull	0	0	0	18	169	117	166	103	127	274	974	139	0	274 (2025)
79.	Yellow-legged Gull	0	0	0	0	2	0	0	0	0	2	4	0.6	0	2 (2020)
80.	Great Black-backed Gull	0	0	0	3	36	11	27	26	23	56	182	26	0	56 (2025)
81.	Lesser Black-backed Gull	0	0	0	199	1081	1023	687	1104	801	2039	6934	991	10	2039 (2025)
82.	White Stork	0	0	0	0	37	8	15	4	2	13	79	11.3	0	37 (2020)
83.	Cormorant	0	0	0	119	1015	733	550	198	223	634	3472	496	0	1015 (2020)
84.	Spoonbill	0	0	0	60	84	78	32	10	28	36	328	47	0	84 (2020)
85.	Little Egret	0	0	0	12	16	8	9	1	6	9	61	8.7	0	16 (2020)
86.	Cattle Egret	0	0	0	0	1	0	1	2	0	4	8	1.1	0	4 (2025)
87.	Great White Egret	0	0	0	7	66	38	31	10	21	22	195	28	0	66 (2020)
88.	heron sp.	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2020)
89.	Grey Heron	0	0	0	75	118	110	49	46	69	80	547	78	0	118 (2020)
90.	Purple Heron	0	0	0	11	27	26	6	12	2	22	106	15	0	27 (2020)
91.	Osprey	0	0	0	1	7	4	1	1	0	1	15	2.1	0	7 (2020)
92.	Honey Buzzard	0	0	0	0	2	1	0	0	0	1	4	0.6	0	2 (2020)
93.	Griffon Vulture	0	0	0	0	11	0	0	0	0	0	11	1.6	0	11 (2020)
94.	Sparrowhawk	0	0	0	17	17	20	11	9	2	21	97	13.9	0	21 (2025)
95.	Goshawk	0	0	0	0	1	1	0	0	1	0	3	0.4	0	1 (2020)
96.	Marsh Harrier	0	0	0	28	104	67	22	24	15	78	338	48	0	104 (2020)
97.	Hen Harrier	0	0	0	3	12	11	2	4	2	5	39	5.6	0	12 (2020)
98.	Pallid Harrier	0	0	0	0	0	1	0	1	0	0	2	0.3	0	1 (2021)
99.	Montagu's Harrier	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2021)
100.	Montagu's/Pallid Harrier	0	0	0	1	0	2	0	1	0	0	4	0.6	0	2 (2021)
	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
101.	Hen/Montagu's/Pallid Harrier	0	0	0	0	2	0	0	0	0	1	3	0.4	0	2 (2020)
102.	Red Kite	0	0	0	0	3	1	0	0	2	2	8	1.1	0	3 (2020)
103.	Black Kite	0	0	0	0	4	2	2	1	0	0	9	1.3	0	4 (2020)
104.	White-tailed Eagle	0	0	0	1	8	10	0	0	0	1	20	2.9	0	10 (2021)
105.	Common Buzzard	0	0	0	3	66	13	13	6	17	18	136	19	0	66 (2020)
106.	Short-eared Owl	0	0	0	0	1	2	0	0	0	1	4	0.6	0	2 (2021)
107.	European Bee-eater	0	0	0	0	0	0	0	0	0	1	1	0.1	0	1 (2025)
108.	Lesser Spotted Woodpecker	0	0	0	0	3	0	0	1	0	0	4	0.6	0	3 (2020)
109.	Great Spotted Woodpecker	0	0	0	2	12	13	3	2	6	9	47	6.7	0	13 (2021)
110.	Kestrel	0	0	0	11	28	17	11	5	26	17	115	16	0	28 (2020)
111.	Red-footed Falcon	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2024)
112.	Merlin	0	0	0	8	10	6	2	2	3	7	38	5.4	0	10 (2020)
113.	Hobby	0	0	0	1	6	3	0	0	3	1	14	2	0	6 (2020)
114.	Peregrine	0	0	0	0	2	0	0	0	4	1	7	1	0	4 (2024)
115.	Golden Oriole	0	0	0	0	1	0	0	0	1	0	2	0.3	0	1 (2020)
116.	Jay	0	0	0	0	77	22	27	5	20	5	156	22	0	77 (2020)
117.	Magpie	0	0	0	0	5	7	1	0	0	0	13	1.9	0	7 (2021)
118.	Jackdaw	0	0	0	175	1049	836	835	1013	781	1369	6058	865	0	1369 (2025)
119.	Rook	0	0	0	3	4	7	1	1	5	4	25	3.6	0	7 (2021)
120.	Carrion Crow	0	0	0	4	101	51	31	77	128	158	550	79	0	158 (2025)
121.	Coal Tit	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2024)
122.	Blue Tit	0	0	0	9	311	95	308	24	87	34	868	124	0	311 (2020)
123.	Great Tit	0	0	0	30	71	60	75	6	22	14	278	40	0	75 (2022)
124.	Wood Lark	0	0	0	6	4	15	30	0	58	11	124	18	0	58 (2024)
125.	Skylark	0	0	0	97	38	895	89	4	38	73	1234	176	0	895 (2021)
126.	Sand Martin	0	0	0	77	534	557	21	79	44	148	1460	209	0	557 (2021)
127.	Swallow	0	0	0	874	2686	1789	339	456	490	787	7421	1060	0	2686 (2020)
128.	House Martin	0	0	0	175	361	222	25	48	27	72	930	133	0	361 (2020)
129.	Long-tailed Tit	0	0	0	0	1	0	1	0	0	2	4	0.6	0	2 (2025)
130.	Willow Warbler	0	0	0	0	3	0	1	0	0	1	5	0.7	0	3 (2020)
131.	Chiffchaff	0	0	0	0	25	19	16	8	1	13	82	11.7	0	25 (2020)
132.	Chiffchaff/Willow Warbler	0	0	0	4	4	0	4	0	0	0	12	1.7	0	4 (2019)
133.	Icterine Warbler	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2020)
134.	Blackcap	0	0	0	2	3	0	0	0	0	1	6	0.9	0	3 (2020)
135.	Nuthatch	0	0	0	0	3	0	0	0	0	0	3	0.4	0	3 (2020)
136.	Short-toed Tree Creeper	0	0	0	0	0	0	1	0	0	2	3	0.4	0	2 (2025)
137.	Starling	0	0	0	1805	4150	25490	9658	852	3398	5105	50458	7208	0	25490 (2021)
138.	Song Thrush	0	0	0	204	183	34	44	3	6	24	498	71	0	204 (2019)
139.	Mistle Thrush	0	0	0	4	6	9	19	2	11	11	62	8.9	0	19 (2022)
140.	Redwing	0	0	0	424	159	254	377	1	0	254	1469	210	0	424 (2019)
141.	Blackbird	0	0	0	0	3	6	1	0	2	0	12	1.7	0	6 (2021)
142.	Fieldfare	0	0	0	1128	827	392	253	38	77	135	2850	407	0	1128 (2019)
143.	Ring Ouzel	0	0	0	33	23	0	4	1	0	1	62	8.9	0	33 (2019)
144.	thrush sp.	0	0	0	12	0	0	0	0	0	0	12	1.7	0	12 (2019)
145.	Spotted Flycatcher	0	0	0	0	4	1	1	0	4	1	11	1.6	0	4 (2020)
146.	Robin	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2021)
147.	Black Redstart	0	0	0	0	3	0	0	0	1	0	4	0.6	0	3 (2020)
148.	Whinchat	0	0	0	1	2	1	0	0	1	0	5	0.7	0	2 (2020)
149.	Stonechat	0	0	0	0	1	1	0	0	1	1	4	0.6	0	1 (2020)
150.	Wheatear	0	0	0	3	2	2	0	2	2	0	11	1.6	0	3 (2019)
	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
151.	Tree Sparrow	0	0	0	4	32	14	14	5	7	1	77	11	0	32 (2020)
152.	House Sparrow	0	0	0	0	8	0	0	0	0	0	8	1.1	0	8 (2020)
153.	Dunnock	0	0	0	1	10	1	2	3	2	0	19	2.7	0	10 (2020)
154.	Blue-headed Wagtail	0	0	0	21	139	60	14	22	23	284	563	80	0	284 (2025)
155.	Yellow Wagtail (flavissima)	0	0	0	3	0	1	0	0	0	0	4	0.6	0	3 (2019)
156.	Grey-headed Wagtail	0	0	0	0	12	1	0	2	14	20	49	7	0	20 (2025)
157.	Yellow wagtail sp.	0	0	0	322	895	532	289	495	283	403	3219	460	0	895 (2020)
158.	Grey Wagtail	0	0	0	2	15	2	4	1	3	5	32	4.6	0	15 (2020)
159.	White Wagtail	0	0	0	9	105	69	57	27	29	261	557	80	0	261 (2025)
160.	alba wagtail sp.	0	0	0	20	271	79	68	75	166	164	843	120	0	271 (2020)
161.	Pied Wagtail	0	0	0	0	0	0	1	0	0	3	4	0.6	0	3 (2025)
162.	Meadow Pipit	0	0	0	16716	12295	6811	3096	3866	444	7829	51057	7294	4	16716 (2019)
163.	Tree Pipit	0	0	0	80	207	49	6	3	4	17	366	52	0	207 (2020)
164.	Water Pipit	0	0	0	0	4	4	1	0	1	2	12	1.7	0	4 (2020)
165.	Rock Pipit/Water Pipit	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2020)
166.	pipit sp.	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2021)
167.	Chaffinch	0	0	0	202	2873	778	4532	624	2011	1309	12329	1761	0	4532 (2022)
168.	Brambling	0	0	0	32	26	18	116	1	12	14	219	31	0	116 (2022)
169.	Hawfinch	0	0	0	4	10	6	0	2	2	13	37	5.3	0	13 (2025)
170.	Greenfinch	0	0	0	32	117	73	52	42	53	44	413	59	0	117 (2020)
171.	Linnet	0	0	0	132	603	203	118	253	284	190	1783	255	0	603 (2020)
172.	Mealy Redpoll	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2024)
173.	redpoll sp.	0	0	0	1	1	2	0	3	3	0	10	1.4	0	3 (2023)
174.	Crossbill	0	0	0	0	5	0	0	0	0	0	5	0.7	0	5 (2020)
175.	Goldfinch	0	0	0	10	120	96	43	67	60	56	452	65	0	120 (2020)
176.	Serin	0	0	0	1	1	1	0	0	0	0	3	0.4	0	1 (2019)
177.	Siskin	0	0	0	9	92	41	39	24	47	17	269	38	0	92 (2020)
178.	Yellowhammer	0	0	0	2	2	0	0	0	2	0	6	0.9	0	2 (2019)
179.	Reed Bunting	0	0	0	15	128	81	45	7	99	76	451	64	0	128 (2020)
180.	bunting sp.	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2020)
	Other species
1.	Small Tortoiseshell	0	0	0	0	1	1	6	0	1	7	16	2.3	0	7 (2025)
2.	European Peacock	0	0	0	0	5	0	2	0	0	11	18	2.6	0	11 (2025)
3.	Speckled Wood	0	0	0	0	0	0	0	0	1	1	2	0.3	0	1 (2024)
4.	Large White	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2021)
5.	Small White	0	0	0	2	1	2	0	0	0	0	5	0.7	0	2 (2019)
6.	white sp. (butterfly)	0	0	0	0	13	0	0	0	0	11	24	3.4	0	13 (2020)
7.	Red Admiral	0	0	0	0	7	0	1	0	3	1	12	1.7	0	7 (2020)
8.	Painted Lady	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2024)
	Other species
1.	Darter unknown	0	0	0	0	0	0	0	0	0	2	2	0.3	0	2 (2025)
	Other species
1.	Bumblebee sp.	0	0	0	10	230	158	50	10	81	104	643	92	0	230 (2020)
	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
	Totals	0	0	0	35068	57785	60363	25511	15185	13787	30520	238219	34031	1426
	Observation hours				68:51	218:24	147:01	64:54	56:35	58:30	90:16	704:31	100:39

Trektellen

Totals Willemstad 2016 - 2025