Also present

Totals De Vulkaan (Den Haag) 2025

	Species	Jan	Feb	Mar	Apr	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Dark-bellied Brent Goose	26	1	480	179	686	105	581	239 (30 Mar)	35	30	1 Jan	30 Apr
2.	Canada Goose	83	74	320	80	557	179	378	54 ( 8 Mar)	58	49	1 Jan	29 Apr
3.	Barnacle Goose	386	914	2398	2990	6688	1240	5448	922 (20 Mar)	56	48	3 Jan	30 Apr
4.	Lesser Canada Goose	0	0	1	0	1	0	1	1 ( 9 Mar)	1	1	9 Mar	9 Mar
5.	Bar-headed Goose	0	0	0	1	1	1	0	1 (28 Apr)	1	1	28 Apr	28 Apr
6.	Greylag Goose	82	330	1131	403	1946	749	1197	181 (19 Mar)	80	68	1 Jan	30 Apr
7.	Anser sp.	37	270	47	0	354	0	354	210 ( 1 Feb)	5	4	31 Jan	8 Mar
8.	goose sp.	10539	861	1079	255	12734	703	12031	8558 (11 Jan)	34	29	2 Jan	12 Apr
9.	Domestic Goose	0	1	0	0	1	1	0	1 (23 Feb)	1	1	23 Feb	23 Feb
10.	Feral Mallard	0	0	1	0	1	0	1	1 (31 Mar)	1	1	31 Mar	31 Mar
11.	Pink-footed Goose	178	2082	26	0	2286	14	2272	1045 (23 Feb)	12	10	2 Jan	7 Mar
12.	Tundra Bean Goose	11	36	0	0	47	0	47	27 (23 Feb)	5	4	26 Jan	23 Feb
13.	Eurasian White-fronted Goose	263	927	58	0	1248	178	1070	365 (26 Feb)	16	14	2 Jan	19 Mar
14.	Mute Swan	3	5	1	26	35	22	13	9 (30 Apr)	14	12	10 Jan	30 Apr
15.	Whooper Swan	0	0	2	0	2	2	0	2 (19 Mar)	1	1	19 Mar	19 Mar
16.	Egyptian Goose	99	172	431	426	1128	339	789	58 ( 9 Mar)	72	61	2 Jan	30 Apr
17.	Shelduck	39	42	87	268	436	188	248	28 (28 Apr)	61	52	2 Jan	30 Apr
18.	Ruddy Shelduck	0	0	1	0	1	0	1	1 (28 Mar)	1	1	28 Mar	28 Mar
19.	Garganey	0	0	0	3	3	0	3	3 ( 3 Apr)	1	1	3 Apr	3 Apr
20.	Shoveler	0	3	201	364	568	28	540	104 ( 8 Apr)	27	23	18 Feb	29 Apr
21.	Gadwall	12	2	8	20	42	18	24	7 (22 Jan)	18	15	3 Jan	30 Apr
22.	Wigeon	699	111	635	5	1450	477	973	214 (14 Mar)	41	35	1 Jan	7 Apr
23.	Mallard	6	2	29	21	58	15	43	7 ( 1 Mar)	24	20	5 Jan	30 Apr
24.	Pintail	1	12	78	38	129	3	126	32 ( 5 Apr)	18	15	3 Jan	29 Apr
25.	Teal	7	47	201	70	325	26	299	57 (29 Mar)	38	32	8 Jan	28 Apr
26.	duck sp.	0	5	46	17	68	8	60	21 ( 1 Mar)	16	14	18 Feb	26 Apr
27.	Garganey/Teal	0	0	1	0	1	0	1	1 (30 Mar)	1	1	30 Mar	30 Mar
28.	Pochard	0	0	0	1	1	0	1	1 (23 Apr)	1	1	23 Apr	23 Apr
29.	Tufted Duck	4	0	2	0	6	2	4	2 ( 3 Jan)	6	5	3 Jan	16 Mar
30.	Scaup	0	0	1	0	1	1	0	1 (16 Mar)	1	1	16 Mar	16 Mar
	Species	Jan	Feb	Mar	Apr	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
31.	Aythya sp.	0	0	1	0	1	0	1	1 ( 7 Mar)	1	1	7 Mar	7 Mar
32.	Eider	35	82	396	271	784	537	247	60 ( 1 Mar)	74	63	2 Jan	30 Apr
33.	Velvet Scoter	13	0	2	0	15	13	2	5 (25 Jan)	7	6	2 Jan	31 Mar
34.	Common Scoter	180	153	855	466	1654	918	736	196 ( 1 Mar)	73	62	1 Jan	30 Apr
35.	Long-tailed Duck	0	2	0	0	2	2	0	2 ( 6 Feb)	1	1	6 Feb	6 Feb
36.	Goldeneye	0	0	1	0	1	1	0	1 ( 8 Mar)	1	1	8 Mar	8 Mar
37.	Goosander	0	1	5	2	8	1	7	3 (17 Mar)	5	4	1 Feb	1 Apr
38.	Red-breasted Merganser	20	19	133	157	329	146	183	40 ( 5 Apr)	60	51	3 Jan	30 Apr
39.	Swift	0	0	0	931	931	27	904	262 (26 Apr)	13	11	15 Apr	30 Apr
40.	Cuckoo	0	0	0	2	2	1	1	1 (13 Apr)	2	2	13 Apr	27 Apr
41.	Stock Dove	4	29	61	62	156	25	131	18 ( 4 Apr)	40	34	1 Jan	29 Apr
42.	Woodpigeon	146	384	5156	2671	8357	2073	6284	1747 (19 Mar)	89	76	1 Jan	30 Apr
43.	Collared Dove	4	0	14	27	45	12	33	4 (11 Jan)	26	22	11 Jan	30 Apr
44.	Red-necked Grebe	0	0	1	0	1	0	1	1 ( 9 Mar)	1	1	9 Mar	9 Mar
45.	Great Crested Grebe	45	117	116	38	316	202	114	54 ( 1 Feb)	58	49	3 Jan	30 Apr
46.	Oystercatcher	12	92	141	622	867	410	457	91 (28 Apr)	73	62	1 Jan	30 Apr
47.	Avocet	0	0	8	7	15	0	15	7 (22 Mar)	4	3	8 Mar	2 Apr
48.	Grey Plover	0	0	5	66	71	0	71	37 ( 5 Apr)	12	10	14 Mar	29 Apr
49.	Golden Plover	53	10	159	23	245	13	232	120 (28 Mar)	19	16	2 Jan	8 Apr
50.	Ringed Plover	0	0	36	103	139	3	136	22 (26 Apr)	22	19	5 Mar	29 Apr
51.	Little Ringed Plover	0	0	9	11	20	3	17	7 (21 Mar)	11	9	7 Mar	25 Apr
52.	Lapwing	0	20	9	6	35	4	31	18 (18 Feb)	13	11	1 Feb	30 Apr
53.	Whimbrel	0	0	2	1304	1306	5	1301	338 ( 5 Apr)	27	23	31 Mar	30 Apr
54.	Curlew	1	8	34	28	71	14	57	7 ( 9 Mar)	29	25	11 Jan	30 Apr
55.	Bar-tailed Godwit	0	0	11	104	115	14	101	63 (25 Apr)	14	12	30 Mar	30 Apr
56.	Black-tailed Godwit	0	3	4	8	15	3	12	5 ( 3 Apr)	7	6	23 Feb	5 Apr
57.	Jack Snipe	0	1	1	0	2	0	2	1 (28 Feb)	2	2	28 Feb	19 Mar
58.	Woodcock	0	0	1	0	1	1	0	1 (16 Mar)	1	1	16 Mar	16 Mar
59.	Snipe	1	0	7	8	16	2	14	3 (15 Apr)	14	12	11 Jan	15 Apr
60.	Green Sandpiper	0	0	5	57	62	0	62	11 ( 4 Apr)	19	16	21 Mar	21 Apr
	Species	Jan	Feb	Mar	Apr	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
61.	Wood Sandpiper	0	0	0	11	11	0	11	8 (15 Apr)	2	2	15 Apr	30 Apr
62.	Redshank	0	0	17	153	170	0	170	73 ( 5 Apr)	14	12	8 Mar	30 Apr
63.	Spotted Redshank	0	0	0	2	2	0	2	1 (13 Apr)	2	2	13 Apr	25 Apr
64.	Greenshank	0	0	0	13	13	1	12	5 (28 Apr)	7	6	3 Apr	30 Apr
65.	Turnstone	0	0	2	1	3	2	1	2 (15 Mar)	2	2	15 Mar	26 Apr
66.	Knot	0	0	0	16	16	0	16	10 ( 6 Apr)	2	2	5 Apr	6 Apr
67.	Ruff	0	0	4	18	22	0	22	14 ( 2 Apr)	4	3	29 Mar	3 Apr
68.	wader sp.	1	18	92	406	517	20	497	202 ( 5 Apr)	27	23	17 Jan	30 Apr
69.	Sanderling	3	11	156	101	271	16	255	86 (10 Mar)	25	21	10 Jan	29 Apr
70.	Dunlin	0	4	79	548	631	6	625	290 ( 5 Apr)	34	29	9 Feb	30 Apr
71.	Little Tern	0	0	0	165	165	4	161	48 (26 Apr)	15	13	9 Apr	30 Apr
72.	Gull-billed Tern	0	0	0	1	1	0	1	1 (30 Apr)	1	1	30 Apr	30 Apr
73.	Caspian Tern	0	0	0	7	7	0	7	4 (12 Apr)	2	2	12 Apr	28 Apr
74.	Black Tern	0	0	0	24	24	0	24	10 (29 Apr)	7	6	18 Apr	30 Apr
75.	Arctic Tern	0	0	0	20	20	0	20	12 (25 Apr)	5	4	18 Apr	28 Apr
76.	Common/Arctic Tern	0	0	0	1635	1635	103	1532	484 (21 Apr)	11	9	19 Apr	30 Apr
77.	Common Tern	0	0	9	3539	3548	219	3329	713 (21 Apr)	29	25	21 Mar	30 Apr
78.	Sandwich Tern	0	0	34	4620	4654	1146	3508	595 ( 8 Apr)	34	29	9 Mar	30 Apr
79.	Little Gull	42	3	122	3611	3778	478	3300	2546 ( 1 Apr)	32	27	2 Jan	30 Apr
80.	Kittiwake	404	0	0	0	404	397	7	156 ( 8 Jan)	12	10	1 Jan	26 Jan
81.	Black-headed Gull	1743	2296	7682	6668	18389	3385	15004	2968 ( 4 Apr)	96	82	1 Jan	30 Apr
82.	Mediterranean Gull	0	0	7	122	129	28	101	32 (12 Apr)	28	24	7 Mar	30 Apr
83.	Common Gull	2662	702	3916	5867	13147	3144	10003	1097 ( 4 Apr)	99	84	1 Jan	30 Apr
84.	Caspian Gull	5	2	1	2	10	7	3	2 (10 Jan)	9	8	4 Jan	24 Apr
85.	Herring Gull	4774	1569	4411	1376	12130	4597	7533	911 ( 8 Jan)	94	80	1 Jan	30 Apr
86.	Yellow-legged Gull	7	0	1	0	8	6	2	3 ( 8 Jan)	6	5	5 Jan	13 Mar
87.	Great Black-backed Gull	541	153	182	187	1063	538	525	76 ( 2 Jan)	89	76	1 Jan	28 Apr
88.	Glaucous Gull	0	0	1	0	1	0	1	1 ( 1 Mar)	1	1	1 Mar	1 Mar
89.	Lesser Black-backed Gull	41	493	8336	5122	13992	618	13374	1628 ( 9 Mar)	86	73	1 Jan	30 Apr
90.	Arctic Skua	1	0	0	0	1	1	0	1 ( 3 Jan)	1	1	3 Jan	3 Jan
	Species	Jan	Feb	Mar	Apr	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
91.	Razorbill	1	0	0	0	1	1	0	1 ( 8 Jan)	1	1	8 Jan	8 Jan
92.	Razorbill/Guillemot	40	0	0	0	40	38	2	20 (10 Jan)	7	6	2 Jan	26 Jan
93.	Red-throated Diver	933	174	118	38	1263	925	338	188 (10 Jan)	82	70	1 Jan	30 Apr
94.	Black-throated Diver	3	0	1	0	4	3	1	1 ( 2 Jan)	5	4	2 Jan	26 Mar
95.	Great Northern Diver	1	0	0	0	1	1	0	1 (10 Jan)	1	1	10 Jan	10 Jan
96.	diver sp.	9	1	1	0	11	7	4	6 (10 Jan)	7	6	4 Jan	28 Mar
97.	Sooty Shearwater	1	0	0	0	1	1	0	1 ( 8 Jan)	1	1	8 Jan	8 Jan
98.	White Stork	0	1	3	3	7	0	7	2 ( 7 Mar)	7	6	26 Feb	15 Apr
99.	Gannet	1333	323	399	10	2065	1291	774	247 (10 Jan)	67	57	1 Jan	25 Apr
100.	Cormorant	6595	2520	5422	3969	18506	6821	11685	1801 ( 4 Jan)	100	85	1 Jan	30 Apr
101.	Spoonbill	0	0	190	417	607	3	604	85 (21 Mar)	34	29	8 Mar	30 Apr
102.	Little Egret	0	0	0	3	3	0	3	1 (23 Apr)	4	3	23 Apr	30 Apr
103.	Cattle Egret	0	0	1	2	3	0	3	2 (29 Apr)	2	2	6 Mar	29 Apr
104.	Great White Egret	0	0	9	23	32	0	32	13 ( 4 Apr)	12	10	7 Mar	21 Apr
105.	heron sp.	0	0	0	3	3	0	3	2 (12 Apr)	2	2	12 Apr	27 Apr
106.	Grey Heron	6	11	124	421	562	28	534	208 ( 4 Apr)	60	51	4 Jan	30 Apr
107.	Osprey	0	0	0	1	1	0	1	1 ( 7 Apr)	1	1	7 Apr	7 Apr
108.	Sparrowhawk	0	2	24	40	66	2	64	7 (21 Mar)	36	31	21 Feb	29 Apr
109.	Goshawk	0	1	1	0	2	1	1	1 (16 Feb)	2	2	16 Feb	8 Mar
110.	Marsh Harrier	0	0	19	57	76	1	75	17 ( 4 Apr)	26	22	15 Mar	30 Apr
111.	Hen Harrier	1	0	0	0	1	1	0	1 ( 2 Jan)	1	1	2 Jan	2 Jan
112.	Red Kite	1	0	1	1	3	1	2	1 (26 Jan)	4	3	26 Jan	2 Apr
113.	Black Kite	0	0	0	1	1	0	1	1 (15 Apr)	1	1	15 Apr	15 Apr
114.	White-tailed Eagle	0	1	1	0	2	1	1	1 ( 9 Feb)	2	2	9 Feb	13 Mar
115.	Common Buzzard	0	4	18	1	23	2	21	4 ( 7 Mar)	15	13	14 Feb	4 Apr
116.	Short-eared Owl	0	0	1	2	3	0	3	1 (21 Mar)	4	3	21 Mar	4 Apr
117.	European Bee-eater	0	0	0	3	3	2	1	2 (26 Apr)	2	2	26 Apr	27 Apr
118.	Great Spotted Woodpecker	0	3	9	7	19	4	15	3 (21 Feb)	13	11	21 Feb	18 Apr
119.	Kestrel	0	0	9	59	68	0	68	25 ( 4 Apr)	16	14	19 Mar	28 Apr
120.	Merlin	0	0	0	19	19	1	18	9 ( 4 Apr)	9	8	4 Apr	30 Apr
	Species	Jan	Feb	Mar	Apr	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
121.	Hobby	0	0	0	1	1	0	1	1 (27 Apr)	1	1	27 Apr	27 Apr
122.	Peregrine	0	1	0	0	1	1	0	1 (26 Feb)	1	1	26 Feb	26 Feb
123.	Jay	0	0	5	18	23	4	19	6 ( 4 Apr)	12	10	6 Mar	27 Apr
124.	Magpie	5	19	38	68	130	14	116	17 ( 4 Apr)	34	29	2 Jan	27 Apr
125.	Jackdaw	0	166	459	275	900	64	836	142 (26 Feb)	52	44	1 Feb	30 Apr
126.	Rook	0	0	11	21	32	10	22	6 (12 Apr)	24	20	8 Mar	27 Apr
127.	Carrion Crow	0	3	122	341	466	20	446	56 ( 3 Apr)	49	42	1 Feb	30 Apr
128.	Raven	0	0	1	0	1	1	0	1 ( 5 Mar)	1	1	5 Mar	5 Mar
129.	Blue Tit	8	16	36	10	70	11	59	10 ( 7 Mar)	29	25	10 Jan	19 Apr
130.	Great Tit	0	19	42	9	70	24	46	10 ( 9 Mar)	28	24	9 Feb	23 Apr
131.	Wood Lark	0	43	58	15	116	15	101	17 (23 Feb)	33	28	21 Feb	29 Apr
132.	Skylark	1	67	81	14	163	3	160	47 (23 Feb)	32	27	26 Jan	15 Apr
133.	Sand Martin	0	0	17	914	931	109	822	201 ( 4 Apr)	28	24	9 Mar	30 Apr
134.	Swallow	0	0	9	1751	1760	361	1399	343 (27 Apr)	31	26	21 Mar	30 Apr
135.	House Martin	0	0	0	66	66	6	60	16 (26 Apr)	16	14	4 Apr	30 Apr
136.	Long-tailed Tit	0	10	6	4	20	0	20	4 ( 9 Feb)	7	6	7 Feb	4 Apr
137.	Willow Warbler	0	0	0	3	3	1	2	1 ( 4 Apr)	4	3	4 Apr	12 Apr
138.	Chiffchaff	0	0	71	8	79	3	76	27 (21 Mar)	19	16	7 Mar	9 Apr
139.	Chiffchaff/Willow Warbler	0	0	0	30	30	1	29	5 ( 8 Apr)	15	13	2 Apr	29 Apr
140.	Blackcap	0	0	0	1	1	0	1	1 (26 Apr)	1	1	26 Apr	26 Apr
141.	Whitethroat	0	0	0	1	1	0	1	1 (26 Apr)	1	1	26 Apr	26 Apr
142.	Goldcrest	1	0	2	2	5	2	3	1 ( 2 Jan)	6	5	2 Jan	12 Apr
143.	Nuthatch	0	0	1	0	1	1	0	1 ( 9 Mar)	1	1	9 Mar	9 Mar
144.	Starling	144	123	3046	207	3520	297	3223	969 (21 Mar)	76	65	2 Jan	30 Apr
145.	Song Thrush	4	6	1380	1811	3201	26	3175	533 (22 Mar)	53	45	4 Jan	29 Apr
146.	Mistle Thrush	0	13	18	38	69	4	65	18 ( 3 Apr)	26	22	18 Feb	19 Apr
147.	Redwing	42	17	78	28	165	38	127	30 (24 Mar)	34	29	2 Jan	8 Apr
148.	Blackbird	2	0	8	1	11	2	9	4 (22 Mar)	8	7	2 Jan	7 Apr
149.	Fieldfare	17	6	6	5	34	19	15	8 (11 Jan)	14	12	2 Jan	25 Apr
150.	Ring Ouzel	0	0	0	113	113	4	109	38 ( 4 Apr)	15	13	2 Apr	27 Apr
	Species	Jan	Feb	Mar	Apr	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
151.	thrush sp.	0	0	0	1	1	0	1	1 (27 Apr)	1	1	27 Apr	27 Apr
152.	Spotted Flycatcher	0	0	0	1	1	1	0	1 (30 Apr)	1	1	30 Apr	30 Apr
153.	Black Redstart	0	0	2	3	5	1	4	2 (22 Mar)	5	4	22 Mar	12 Apr
154.	Redstart	0	0	0	1	1	1	0	1 (12 Apr)	1	1	12 Apr	12 Apr
155.	Stonechat	0	0	2	0	2	0	2	1 ( 7 Mar)	2	2	7 Mar	22 Mar
156.	Wheatear	0	0	0	9	9	0	9	4 (15 Apr)	6	5	4 Apr	30 Apr
157.	Tree Sparrow	0	0	2	1	3	0	3	1 ( 8 Mar)	4	3	8 Mar	15 Apr
158.	House Sparrow	0	0	1	4	5	3	2	1 ( 9 Mar)	6	5	9 Mar	28 Apr
159.	Dunnock	0	5	28	7	40	2	38	6 ( 8 Mar)	24	20	1 Feb	19 Apr
160.	Blue-headed Wagtail	0	0	2	19	21	1	20	6 (12 Apr)	11	9	22 Mar	29 Apr
161.	Yellow Wagtail (flavissima)	0	0	0	5	5	0	5	1 ( 5 Apr)	6	5	5 Apr	30 Apr
162.	Grey-headed Wagtail	0	0	0	1	1	0	1	1 (30 Apr)	1	1	30 Apr	30 Apr
163.	Yellow wagtail sp.	0	0	6	802	808	3	805	115 (15 Apr)	31	26	19 Mar	30 Apr
164.	Grey Wagtail	0	1	23	6	30	0	30	9 (22 Mar)	14	12	1 Feb	21 Apr
165.	White Wagtail	2	3	70	18	93	15	78	16 ( 8 Mar)	31	26	26 Jan	30 Apr
166.	alba wagtail sp.	0	18	988	339	1345	36	1309	219 (21 Mar)	61	52	8 Feb	30 Apr
167.	Pied Wagtail	0	1	8	3	12	1	11	2 ( 8 Mar)	11	9	23 Feb	12 Apr
168.	Meadow Pipit	10	276	2241	10403	12930	62	12868	4661 (15 Apr)	73	62	2 Jan	30 Apr
169.	Tree Pipit	0	0	2	188	190	0	190	29 (12 Apr)	26	22	23 Mar	30 Apr
170.	Water Pipit	0	0	1	0	1	0	1	1 (21 Mar)	1	1	21 Mar	21 Mar
171.	Rock Pipit	0	1	2	0	3	0	3	1 (28 Feb)	4	3	28 Feb	19 Mar
172.	Rock Pipit/Water Pipit	0	0	13	1	14	0	14	4 (21 Mar)	9	8	8 Mar	1 Apr
173.	Chaffinch	136	348	1111	87	1682	234	1448	343 ( 9 Mar)	79	67	1 Jan	30 Apr
174.	Brambling	0	0	6	4	10	1	9	3 (21 Mar)	7	6	2 Mar	8 Apr
175.	Hawfinch	0	1	10	25	36	6	30	6 ( 7 Apr)	18	15	28 Feb	30 Apr
176.	Bullfinch	0	0	1	1	2	0	2	1 ( 2 Mar)	2	2	2 Mar	15 Apr
177.	Greenfinch	5	20	139	37	201	45	156	32 ( 8 Mar)	55	47	8 Jan	27 Apr
178.	Linnet	0	4	245	529	778	63	715	87 ( 4 Apr)	59	50	1 Feb	30 Apr
179.	Lesser Redpoll	0	0	0	1	1	1	0	1 ( 7 Apr)	1	1	7 Apr	7 Apr
180.	redpoll sp.	0	2	9	5	16	9	7	3 ( 7 Mar)	11	9	28 Feb	29 Apr
	Species	Jan	Feb	Mar	Apr	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
181.	Goldfinch	16	19	99	58	192	67	125	13 (22 Mar)	59	50	1 Jan	30 Apr
182.	Serin	0	1	0	1	2	1	1	1 (23 Feb)	2	2	23 Feb	19 Apr
183.	Siskin	2	15	59	17	93	76	17	14 (19 Mar)	40	34	2 Jan	30 Apr
184.	Lapland Bunting	0	0	1	0	1	0	1	1 (19 Mar)	1	1	19 Mar	19 Mar
185.	Reed Bunting	0	6	137	11	154	13	141	50 ( 8 Mar)	29	25	23 Feb	25 Apr
186.	passerine sp.	0	0	7	7	14	0	14	4 ( 4 Apr)	9	8	1 Mar	28 Apr
	Other species
	Species	Jan	Feb	Mar	Apr	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Harbour Porpoise	3	6	2	6	17	12	5	3 ( 9 Feb)	13	11	1 Jan	27 Apr
2.	Grey seal	0	0	2	0	2	2	0	2 ( 2 Mar)	1	1	2 Mar	2 Mar
3.	Common Seal	0	0	0	1	1	0	1	1 (25 Apr)	1	1	25 Apr	25 Apr
	Other species
	Species	Jan	Feb	Mar	Apr	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Brimstone	0	0	2	6	8	2	6	3 (29 Apr)	6	5	20 Mar	29 Apr
2.	European Peacock	0	0	5	3	8	1	7	5 (21 Mar)	4	3	21 Mar	29 Apr
3.	Speckled Wood	0	0	0	4	4	0	4	3 (12 Apr)	2	2	12 Apr	27 Apr
4.	Large White	0	0	0	2	2	0	2	2 (19 Apr)	1	1	19 Apr	19 Apr
5.	Small White	0	0	1	12	13	1	12	7 (12 Apr)	7	6	20 Mar	28 Apr
6.	white sp. (butterfly)	0	0	0	55	55	4	51	26 (27 Apr)	8	7	3 Apr	29 Apr
7.	Comma	0	0	0	1	1	0	1	1 (12 Apr)	1	1	12 Apr	12 Apr
8.	Red Admiral	0	0	4	6	10	2	8	2 ( 3 Apr)	11	9	8 Mar	27 Apr
	Other species
	Species	Jan	Feb	Mar	Apr	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Bumblebee sp.	0	0	47	16	63	4	59	11 (21 Mar)	27	23	2 Mar	30 Apr
	Species	Jan	Feb	Mar	Apr	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
	Totals	32535	16346	56614	69918	175413	34291	141122		100	85
	Observation hours	65:45	58:43	119:12	111:17	354:57

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Trektellen

Totals De Vulkaan (Den Haag) 2025