Totals Dordtse Biesbosch 2025

Year
Period
count-field
Also present

	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Canada Goose	0	13	20	0	0	0	0	0	0	83	0	116	45	71	38 (2 Oct)	8	7	8 Feb	30 Oct
2.	Barnacle Goose	200	4594	1992	35	2	0	0	0	30	247	92	7192	572	6620	1408 (18 Feb)	49	43	27 Jan	13 Nov
3.	Greylag Goose	11	302	284	30	20	0	0	93	213	2065	250	3268	2073	1195	575 (13 Oct)	60	53	27 Jan	7 Nov
4.	goose sp.	0	1605	38	0	0	0	16	0	0	94	606	2359	698	1661	1500 (26 Feb)	13	11	18 Feb	13 Nov
5.	Pink-footed Goose	0	0	0	0	0	0	0	0	0	0	1	1	1	0	1 (5 Nov)	1	1	5 Nov	5 Nov
6.	Tundra Bean Goose	206	680	6	0	0	0	0	0	0	174	486	1552	660	892	250 (2 Nov)	20	18	27 Jan	7 Nov
7.	Eurasian White-fronted Goose	456	3434	1712	0	0	0	0	0	30	3480	1113	10225	4446	5779	1200 (31 Oct)	48	42	27 Jan	13 Nov
8.	Mute Swan	0	0	2	3	0	0	0	0	0	0	0	5	0	5	2 (20 Mar)	3	3	20 Mar	4 Apr
9.	Whooper Swan	13	0	0	0	0	0	0	0	0	0	0	13	0	13	13 (28 Jan)	1	1	28 Jan	28 Jan
10.	Egyptian Goose	0	0	20	27	0	0	3	20	4	18	2	94	58	36	17 (3 Apr)	16	14	6 Mar	13 Nov
11.	Shelduck	3	16	21	19	0	0	0	13	13	26	12	123	63	60	12 (24 Oct)	33	29	28 Jan	6 Nov
12.	Ruddy Shelduck	0	0	0	0	0	0	0	2	0	4	0	6	2	4	4 (14 Oct)	2	2	28 Aug	14 Oct
13.	Garganey	0	0	0	4	0	0	0	0	0	0	0	4	0	4	4 (11 Apr)	1	1	11 Apr	11 Apr
14.	Shoveler	2	5	3	131	0	0	0	18	22	0	12	193	52	141	87 (12 Apr)	17	15	28 Jan	6 Nov
15.	Gadwall	9	0	0	0	27	0	63	99	0	0	0	198	171	27	59 (7 Aug)	9	8	28 Jan	28 Aug
16.	Wigeon	0	6	40	0	0	0	0	0	63	17	55	181	135	46	55 (6 Nov)	14	12	18 Feb	6 Nov
17.	Mallard	9	6	10	10	0	0	0	0	0	0	0	35	7	28	7 (28 Jan)	14	12	27 Jan	25 Apr
18.	Pintail	0	27	39	4	0	0	0	10	11	40	75	206	136	70	41 (6 Nov)	30	26	12 Feb	7 Nov
19.	Pochard	0	0	0	0	0	0	0	0	14	0	0	14	6	8	8 (23 Sep)	2	2	23 Sep	24 Sep
20.	Tufted Duck	0	2	5	0	0	0	0	21	0	0	0	28	21	7	13 (22 Aug)	5	4	4 Feb	28 Aug
21.	Eider	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (25 Apr)	1	1	25 Apr	25 Apr
22.	Goldeneye	1	63	22	0	0	0	0	0	0	2	0	88	2	86	19 (21 Feb)	15	13	31 Jan	24 Oct
23.	Goosander	0	14	42	16	0	0	0	0	0	0	1	73	3	70	32 (21 Mar)	16	14	14 Feb	6 Nov
24.	Red-breasted Merganser	0	0	0	5	0	0	0	0	0	0	0	5	0	5	4 (26 Apr)	2	2	22 Apr	26 Apr
25.	Swift	0	0	0	791	1757	0	3290	2	4	0	0	5844	3296	2548	2556 (22 Jul)	16	14	21 Apr	2 Sep
26.	Cuckoo	0	0	0	3	2	0	0	0	0	0	0	5	0	5	2 (19 Apr)	3	3	12 Apr	12 May
27.	Stock Dove	1	1	24	67	7	0	0	3	35	133	144	415	271	144	94 (6 Nov)	49	43	27 Jan	13 Nov
28.	Woodpigeon	59	139	695	188	17	0	2	6	54	18849	10223	30232	29212	1020	4146 (30 Oct)	84	74	27 Jan	13 Nov
29.	Collared Dove	0	0	0	0	0	0	0	0	0	2	0	2	2	0	1 (7 Oct)	2	2	7 Oct	11 Oct
30.	Crane	0	0	0	0	0	0	0	0	0	0	1	1	1	0	1 (7 Nov)	1	1	7 Nov	7 Nov
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
31.	Great Crested Grebe	0	1	0	0	0	0	3	2	1	1	0	8	7	1	2 (22 Jul)	7	6	4 Feb	14 Oct
32.	Oystercatcher	0	16	16	75	40	0	4	6	3	0	0	160	13	147	24 (12 May)	30	26	14 Feb	6 Sep
33.	Avocet	0	0	0	12	2	0	0	0	0	0	0	14	0	14	5 (4 Apr)	7	6	4 Apr	10 May
34.	Grey Plover	0	0	10	0	0	0	0	0	3	2	0	15	5	10	10 (18 Mar)	5	4	18 Mar	31 Oct
35.	Golden Plover	0	0	1	0	0	0	0	0	0	15	0	16	15	1	10 (2 Oct)	5	4	21 Mar	30 Oct
36.	Ringed Plover	0	0	26	12	0	0	0	0	0	1	0	39	1	38	21 (18 Mar)	8	7	18 Mar	1 Oct
37.	Little Ringed Plover	0	0	0	11	2	0	0	0	0	0	0	13	0	13	11 (4 Apr)	2	2	4 Apr	10 May
38.	Lapwing	0	1644	484	53	12	0	146	159	55	309	873	3735	1542	2193	691 (14 Feb)	58	51	8 Feb	13 Nov
39.	Whimbrel	0	0	0	9	5	0	0	0	0	0	0	14	0	14	8 (22 Apr)	3	3	22 Apr	10 May
40.	Curlew	0	8	12	166	0	0	0	0	0	8	0	194	8	186	164 (5 Apr)	17	15	9 Feb	24 Oct
41.	Black-tailed Godwit	0	76	594	276	2	0	0	0	0	0	0	948	0	948	245 (21 Mar)	27	24	12 Feb	12 May
42.	Snipe	0	22	31	22	0	0	8	99	91	113	11	397	333	64	72 (28 Aug)	39	34	14 Feb	7 Nov
43.	Common Sandpiper	0	0	0	0	1	0	0	3	2	0	0	6	5	1	3 (28 Aug)	5	4	10 May	24 Sep
44.	Green Sandpiper	0	0	3	241	1	0	6	17	10	19	0	297	52	245	81 (12 Apr)	35	31	21 Mar	19 Oct
45.	Wood Sandpiper	0	0	0	0	4	0	0	1	0	0	0	5	1	4	3 (12 May)	3	3	10 May	28 Aug
46.	Redshank	0	0	6	34	3	0	2	0	0	0	1	46	2	44	11 (5 Apr)	18	16	8 Mar	7 Nov
47.	Spotted Redshank	0	0	0	3	0	0	0	0	1	1	0	5	2	3	3 (11 Apr)	3	3	11 Apr	11 Oct
48.	Greenshank	0	0	0	55	7	0	0	22	3	1	0	88	26	62	24 (26 Apr)	16	14	4 Apr	29 Oct
49.	Ruff	0	0	25	68	2	0	0	13	14	0	0	122	29	93	29 (4 Apr)	17	15	18 Mar	20 Sep
50.	wader sp.	0	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (2 Oct)	1	1	2 Oct	2 Oct
51.	Dunlin	0	0	0	0	0	0	0	0	1	12	0	13	13	0	10 (2 Oct)	3	3	26 Sep	24 Oct
52.	Black Tern	0	0	0	106	0	0	2	0	0	0	0	108	2	106	103 (22 Apr)	6	5	22 Apr	22 Jul
53.	Common Tern	0	0	0	141	45	0	60	57	28	0	0	331	145	186	43 (25 Apr)	28	25	12 Apr	27 Sep
54.	Little Gull	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (19 Apr)	1	1	19 Apr	19 Apr
55.	Black-headed Gull	15	414	430	639	251	0	706	320	339	496	207	3817	2015	1802	300 (22 Jul)	74	65	28 Jan	13 Nov
56.	Mediterranean Gull	0	0	6	230	2	0	0	0	0	0	0	238	14	224	89 (22 Apr)	18	16	20 Mar	10 May
57.	Common Gull	1	3	9	12	0	0	24	1	6	0	1	57	35	22	14 (17 Jul)	22	19	31 Jan	6 Nov
58.	Caspian Gull	2	1	4	6	0	0	0	0	0	1	0	14	3	11	2 (12 Apr)	14	12	27 Jan	24 Oct
59.	Herring Gull	1	36	43	59	12	0	21	3	15	19	13	222	71	151	20 (14 Feb)	48	42	31 Jan	13 Nov
60.	Yellow-legged Gull	1	4	19	16	1	0	0	0	0	2	0	43	2	41	9 (29 Mar)	23	20	28 Jan	18 Oct
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
61.	Great Black-backed Gull	0	8	27	19	11	0	1	1	4	1	0	72	7	65	8 (10 May)	35	31	18 Feb	30 Oct
62.	Lesser Black-backed Gull	0	31	142	236	42	0	27	20	33	18	1	550	99	451	54 (5 Apr)	55	48	4 Feb	6 Nov
63.	Black Stork	0	0	0	0	0	0	0	2	0	0	0	2	2	0	2 (28 Aug)	1	1	28 Aug	28 Aug
64.	White Stork	0	0	0	6	2	0	0	0	47	0	0	55	47	8	45 (7 Sep)	8	7	1 Apr	30 Sep
65.	Cormorant	0	5	171	270	18	0	44	82	563	755	104	2012	1556	456	143 (9 Oct)	74	65	18 Feb	13 Nov
66.	Glossy Ibis	0	0	0	0	1	0	0	0	0	0	1	2	0	2	1 (12 May)	2	2	12 May	7 Nov
67.	Spoonbill	0	0	30	206	117	0	24	30	195	10	1	613	278	335	168 (19 Sep)	43	38	6 Mar	6 Nov
68.	Bittern	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (11 Apr)	1	1	11 Apr	11 Apr
69.	Little Egret	0	1	2	24	3	0	12	1	7	8	0	58	23	35	11 (17 Jul)	30	26	21 Feb	16 Oct
70.	Cattle Egret	0	0	0	4	22	0	0	0	0	2	2	30	5	25	16 (12 May)	8	7	5 Apr	5 Nov
71.	Great White Egret	0	2	11	67	14	0	5	1	26	54	54	234	140	94	45 (6 Nov)	51	45	15 Feb	7 Nov
72.	Grey Heron	0	4	6	38	4	0	1	2	6	26	2	89	39	50	15 (4 Apr)	39	34	15 Feb	7 Nov
73.	Purple Heron	0	0	0	1	0	0	0	2	90	0	0	93	92	1	89 (5 Sep)	5	4	12 Apr	20 Sep
74.	Osprey	0	0	0	6	2	0	0	2	4	0	0	14	6	8	1 (4 Apr)	16	14	4 Apr	30 Sep
75.	Honey Buzzard	0	0	0	0	5	0	1	1	10	0	0	17	12	5	6 (2 Sep)	7	6	12 May	19 Sep
76.	Sparrowhawk	0	0	5	20	5	0	0	2	6	43	30	111	81	30	11 (30 Oct)	43	38	1 Mar	6 Nov
77.	Goshawk	0	0	0	3	0	0	0	0	0	2	0	5	2	3	2 (5 Apr)	3	3	4 Apr	18 Oct
78.	Marsh Harrier	0	0	7	47	10	0	0	1	12	1	5	83	19	64	21 (5 Apr)	27	24	20 Mar	7 Nov
79.	Hen Harrier	0	2	1	10	0	0	0	0	0	2	1	16	3	13	6 (5 Apr)	10	9	21 Feb	6 Nov
80.	Red Kite	0	0	1	3	0	0	0	0	0	0	0	4	0	4	2 (3 Apr)	3	3	20 Mar	12 Apr
81.	Black Kite	0	0	0	0	0	0	0	1	0	0	0	1	1	0	1 (7 Aug)	1	1	7 Aug	7 Aug
82.	White-tailed Eagle	0	2	1	1	0	0	0	0	0	0	0	4	0	4	2 (14 Feb)	3	3	14 Feb	4 Apr
83.	Common Buzzard	0	0	1	14	2	0	0	1	4	9	8	39	22	17	10 (3 Apr)	16	14	20 Mar	7 Nov
84.	Great Spotted Woodpecker	0	0	3	0	0	0	0	1	2	0	6	12	9	3	3 (2 Nov)	7	6	6 Mar	6 Nov
85.	Green Woodpecker	0	0	0	0	0	0	0	1	0	1	0	2	2	0	1 (7 Aug)	2	2	7 Aug	2 Oct
86.	Kestrel	0	0	4	24	1	0	0	2	0	2	0	33	4	29	8 (4 Apr)	14	12	18 Mar	24 Oct
87.	Merlin	0	0	0	5	1	0	0	0	1	1	2	10	4	6	4 (4 Apr)	7	6	4 Apr	6 Nov
88.	Hobby	0	0	0	1	2	0	1	1	1	0	0	6	3	3	1 (19 Apr)	7	6	19 Apr	7 Sep
89.	Peregrine	0	0	1	2	0	0	0	0	1	1	1	6	3	3	2 (4 Apr)	6	5	29 Mar	13 Nov
90.	Rose-ringed Parakeet	0	3	0	4	3	0	0	0	0	0	8	18	8	10	8 (5 Nov)	6	5	21 Feb	5 Nov
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
91.	Jay	0	0	0	5	0	0	0	0	2	1	0	8	1	7	2 (4 Apr)	6	5	3 Apr	2 Oct
92.	Magpie	0	0	6	1	0	0	0	0	1	24	2	34	27	7	12 (9 Oct)	13	11	1 Mar	6 Nov
93.	Jackdaw	1	9	74	46	4	0	0	18	58	610	284	1104	970	134	132 (6 Nov)	52	46	31 Jan	13 Nov
94.	Rook	0	0	14	4	0	0	0	0	3	3	0	24	3	21	13 (8 Mar)	8	7	8 Mar	30 Oct
95.	Carrion Crow	2	5	100	86	41	0	0	7	30	78	21	370	140	230	32 (5 Apr)	50	44	28 Jan	13 Nov
96.	Coal Tit	0	0	0	0	0	0	0	0	0	1	1	2	2	0	1 (19 Oct)	2	2	19 Oct	5 Nov
97.	Willow Tit	0	0	3	1	1	0	0	2	0	1	0	8	3	5	2 (7 Aug)	8	7	8 Mar	2 Oct
98.	Blue Tit	0	6	18	6	1	0	18	10	80	1191	346	1676	1526	150	595 (29 Oct)	63	55	14 Feb	13 Nov
99.	Great Tit	0	21	20	18	5	0	2	1	35	71	17	190	106	84	11 (20 Mar)	55	48	9 Feb	13 Nov
100.	Bearded Tit	0	0	0	0	0	0	0	0	0	9	0	9	9	0	7 (19 Oct)	2	2	2 Oct	19 Oct
101.	Wood Lark	0	0	0	0	0	0	0	0	0	6	1	7	7	0	4 (2 Oct)	3	3	2 Oct	5 Nov
102.	Skylark	0	6	5	0	0	0	0	0	2	3481	1617	5111	5100	11	1863 (18 Oct)	22	19	18 Feb	13 Nov
103.	Sand Martin	0	0	5	157	3	0	1945	17	188	0	0	2315	2150	165	1564 (22 Jul)	33	29	22 Mar	27 Sep
104.	Swallow	0	0	21	204	37	0	81	326	1599	123	0	2391	2105	286	549 (26 Sep)	52	46	15 Mar	30 Oct
105.	House Martin	0	0	0	10	4	0	7	342	315	0	0	678	664	14	291 (28 Aug)	16	14	4 Apr	30 Sep
106.	Long-tailed Tit	0	15	1	0	0	0	0	0	31	93	8	148	98	50	28 (29 Oct)	14	12	15 Feb	6 Nov
107.	Willow Warbler	0	0	0	1	0	0	0	4	0	0	0	5	4	1	4 (7 Aug)	2	2	12 Apr	7 Aug
108.	Chiffchaff	0	0	12	0	0	0	3	9	33	15	3	75	63	12	14 (5 Sep)	27	24	20 Mar	13 Nov
109.	Reed Warbler	0	0	0	1	0	0	0	1	1	1	0	4	3	1	1 (12 Apr)	5	4	12 Apr	9 Oct
110.	Icterine Warbler	0	0	0	0	1	0	0	0	0	0	0	1	0	1	1 (10 May)	1	1	10 May	10 May
111.	Savi's Warbler	0	0	0	0	0	0	1	0	0	0	0	1	1	0	1 (17 Jul)	1	1	17 Jul	17 Jul
112.	Blackcap	0	0	0	0	0	0	0	0	1	1	0	2	2	0	1 (24 Sep)	2	2	24 Sep	15 Oct
113.	Garden Warbler	0	0	0	0	0	0	0	4	0	0	0	4	4	0	4 (7 Aug)	1	1	7 Aug	7 Aug
114.	Whitethroat	0	0	0	0	1	0	0	0	0	0	0	1	0	1	1 (12 May)	1	1	12 May	12 May
115.	Firecrest	0	0	0	0	0	0	0	0	0	5	0	5	5	0	2 (14 Oct)	3	3	14 Oct	29 Oct
116.	Goldcrest	0	0	0	0	0	0	0	0	0	161	7	168	168	0	51 (2 Oct)	16	14	1 Oct	5 Nov
117.	Nuthatch	0	0	0	0	0	0	0	0	0	0	1	1	1	0	1 (6 Nov)	1	1	6 Nov	6 Nov
118.	Short-toed Tree Creeper	0	0	0	0	0	0	0	0	1	2	0	3	3	0	2 (8 Oct)	2	2	5 Sep	8 Oct
119.	Starling	0	165	595	29	8	0	293	242	289	11431	1834	14886	14089	797	3800 (14 Oct)	69	61	8 Feb	13 Nov
120.	Song Thrush	0	0	2	4	0	0	0	0	36	417	15	474	443	31	91 (19 Oct)	36	32	21 Mar	7 Nov
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
121.	Mistle Thrush	0	1	15	8	0	0	0	0	7	18	13	62	38	24	13 (29 Mar)	20	18	21 Feb	13 Nov
122.	Redwing	0	0	2175	61	0	0	0	0	0	14894	3347	20477	17591	2886	5116 (19 Oct)	28	25	22 Mar	13 Nov
123.	Blackbird	2	1	3	4	0	0	0	0	51	97	50	208	196	12	45 (26 Sep)	33	29	28 Jan	13 Nov
124.	Fieldfare	0	30	104	5	0	0	0	0	0	3779	2626	6544	6324	220	1244 (18 Oct)	22	19	12 Feb	13 Nov
125.	Ring Ouzel	0	0	1	1	0	0	0	0	0	5	0	7	5	2	3 (19 Oct)	5	4	22 Mar	19 Oct
126.	Nightingale	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (11 Apr)	1	1	11 Apr	11 Apr
127.	Pied Flycatcher	0	0	0	0	1	0	0	0	0	0	0	1	0	1	1 (10 May)	1	1	10 May	10 May
128.	Black Redstart	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 (24 Sep)	1	1	24 Sep	24 Sep
129.	Stonechat	0	0	3	0	0	0	0	0	2	0	0	5	2	3	2 (20 Mar)	3	3	20 Mar	27 Sep
130.	Tree Sparrow	0	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (22 Oct)	1	1	22 Oct	22 Oct
131.	Dunnock	0	2	1	3	0	0	0	0	0	8	0	14	8	6	2 (21 Feb)	10	9	21 Feb	31 Oct
132.	Blue-headed Wagtail	0	0	0	10	1	0	0	4	71	0	0	86	75	11	35 (7 Sep)	17	15	3 Apr	26 Sep
133.	Grey Wagtail	0	0	1	0	0	0	0	1	2	1	2	7	6	1	2 (24 Sep)	7	6	24 Mar	6 Nov
134.	White Wagtail	0	9	24	16	0	0	0	10	23	48	5	135	84	51	12 (21 Mar)	41	36	12 Feb	6 Nov
135.	Pied Wagtail	0	0	1	0	0	0	0	0	0	0	0	1	0	1	1 (20 Mar)	1	1	20 Mar	20 Mar
136.	Meadow Pipit	0	18	126	616	13	0	0	6	224	818	30	1851	1074	777	159 (12 Apr)	59	52	12 Feb	13 Nov
137.	Tree Pipit	0	0	0	3	0	0	0	4	2	0	0	9	6	3	3 (19 Apr)	6	5	19 Apr	7 Sep
138.	Water Pipit	0	2	0	0	0	0	0	0	0	3	5	10	10	0	3 (5 Nov)	8	7	20 Feb	7 Nov
139.	Chaffinch	5	12	169	104	3	0	2	12	297	13562	2676	16842	16510	332	1905 (30 Oct)	76	67	28 Jan	13 Nov
140.	Brambling	0	0	0	0	0	0	0	0	2	109	16	127	127	0	20 (18 Oct)	22	19	24 Sep	7 Nov
141.	Hawfinch	0	0	2	0	0	0	0	1	0	2	0	5	3	2	1 (21 Mar)	6	5	21 Mar	19 Oct
142.	Greenfinch	0	10	11	0	0	0	0	0	55	24	3	103	81	22	48 (20 Sep)	23	20	21 Feb	5 Nov
143.	Linnet	0	0	4	82	7	0	7	1	83	139	1	324	224	100	84 (8 Oct)	39	34	21 Mar	2 Nov
144.	Mealy Redpoll	0	0	0	0	0	0	0	0	0	0	1	1	1	0	1 (6 Nov)	1	1	6 Nov	6 Nov
145.	Redpoll	0	0	0	0	0	0	0	0	0	14	1	15	15	0	7 (22 Oct)	5	4	8 Oct	5 Nov
146.	Crossbill	0	0	0	0	0	0	0	0	4	0	0	4	4	0	4 (24 Sep)	1	1	24 Sep	24 Sep
147.	Goldfinch	0	0	5	5	7	0	2	4	0	19	7	49	27	22	6 (11 Oct)	17	15	1 Mar	5 Nov
148.	Siskin	0	0	21	0	0	0	0	0	2	162	288	473	407	66	108 (13 Nov)	27	24	21 Mar	13 Nov
149.	Reed Bunting	4	1	46	22	0	0	0	0	138	214	20	445	372	73	126 (2 Oct)	50	44	28 Jan	13 Nov
	Other species
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Dark Clouded Yellow	0	0	0	0	0	0	0	0	0	0	1	1	1	0	1 (5 Nov)	1	1	5 Nov	5 Nov
2.	European Peacock	0	0	8	5	0	0	0	0	0	0	0	13	0	13	4 (29 Mar)	6	5	20 Mar	12 Apr
3.	Swallowtail	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (19 Apr)	1	1	19 Apr	19 Apr
4.	Small White	0	0	0	12	0	0	0	12	0	0	0	24	12	12	12 (28 Aug)	6	5	3 Apr	28 Aug
5.	Red Admiral	0	0	0	1	0	0	0	0	0	1	0	2	1	1	1 (19 Apr)	2	2	19 Apr	9 Oct
6.	Painted Lady	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (19 Apr)	1	1	19 Apr	19 Apr
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
	Totals	1004	13503	10703	6127	2627	0	6833	2182	5746	78814	27654	155193	119645	35548		100	88
	Observation hours	5:00	28:00	39:15	56:15	14:00	0:00	10:00	41:30	45:18	78:48	22:11	340:17

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Totals Dordtse Biesbosch 2025