Also present

Totals Berkheide (Katwijk) 2018

	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Dark-bellied Brent Goose	0	214	1	24	0	0	0	239	2	237	145 (30 Mar)	7	6	17 Mar	21 May
2.	Canada Goose	23	68	17	1	90	0	0	199	45	154	85 (14 Jun)	30	25	17 Feb	27 Jun
3.	Barnacle Goose	40	443	4052	4210	35	16	0	8796	111	8685	2200 ( 8 May)	59	49	14 Feb	16 Jul
4.	Greylag Goose	267	513	141	78	0	4	10	1013	438	575	114 ( 4 Mar)	60	50	14 Feb	12 Aug
5.	goose sp.	115	0	0	110	0	0	0	225	0	225	115 (18 Feb)	2	2	18 Feb	6 May
6.	Pink-footed Goose	31	0	0	0	0	0	0	31	0	31	18 (14 Feb)	2	2	14 Feb	18 Feb
7.	Eurasian White-fronted Goose	0	390	0	0	0	0	0	390	0	390	160 ( 7 Mar)	6	5	4 Mar	27 Mar
8.	Mute Swan	3	5	4	60	0	0	0	72	30	42	26 (21 May)	17	14	18 Feb	26 May
9.	Whooper Swan	4	2	0	0	0	0	0	6	4	2	4 (17 Feb)	2	2	17 Feb	23 Mar
10.	Egyptian Goose	16	72	2	0	0	1	0	91	24	67	38 (24 Mar)	11	9	16 Feb	16 Jul
11.	Shelduck	3	70	101	136	8	97	20	435	110	325	39 (15 Jul)	61	51	10 Feb	9 Aug
12.	Garganey	0	2	0	2	0	0	0	4	2	2	2 (17 Mar)	2	2	17 Mar	7 May
13.	Shoveler	0	95	61	1	0	9	9	175	45	130	37 (24 Mar)	19	16	8 Mar	7 Aug
14.	Gadwall	1	3	9	15	11	4	9	52	32	20	11 (14 Jun)	20	17	20 Feb	12 Aug
15.	Wigeon	366	883	22	0	0	1	0	1272	461	811	500 (28 Mar)	17	14	10 Feb	16 Jul
16.	American Wigeon	1	0	0	0	0	0	0	1	1	0	1 (10 Feb)	1	1	10 Feb	10 Feb
17.	Mallard	0	6	13	13	0	11	3	46	26	20	7 (16 Jul)	22	18	17 Mar	9 Aug
18.	Pintail	2	21	0	0	0	0	0	23	6	17	14 (24 Mar)	7	6	14 Feb	28 Mar
19.	Teal	0	64	3	5	0	2	7	81	23	58	30 (28 Mar)	13	11	21 Mar	12 Aug
20.	duck sp.	6	20	3	0	0	9	0	38	15	23	20 (24 Mar)	5	4	16 Feb	16 Jul
21.	Red-crested Pochard	0	0	0	21	0	3	0	24	5	19	6 (12 May)	6	5	4 May	16 Jul
22.	Pochard	0	9	2	15	0	3	0	29	10	19	6 (28 Mar)	14	12	7 Mar	16 Jul
23.	Tufted Duck	0	7	0	5	0	2	0	14	2	12	7 (24 Mar)	5	4	24 Mar	16 Jul
24.	Scaup	0	1	0	0	0	0	0	1	0	1	1 (17 Mar)	1	1	17 Mar	17 Mar
25.	Eider	6	21	38	16	0	0	0	81	35	46	12 (22 Apr)	23	19	17 Feb	21 May
26.	Velvet Scoter	0	1	4	0	0	0	0	5	0	5	4 (29 Apr)	2	2	28 Mar	29 Apr
27.	Common Scoter	32	401	488	159	30	0	9	1119	485	634	209 (29 Apr)	39	32	17 Feb	7 Aug
28.	Smew	0	3	0	0	0	0	0	3	0	3	2 ( 4 Mar)	2	2	4 Mar	15 Mar
29.	Goosander	9	19	0	0	0	0	0	28	16	12	9 (15 Mar)	11	9	17 Feb	30 Mar
30.	Red-breasted Merganser	4	30	41	7	0	0	0	82	29	53	18 ( 8 Apr)	17	14	17 Feb	8 May
	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
31.	Swift	0	0	33	3615	954	2018	28	6648	1943	4705	2063 (24 May)	39	32	19 Apr	12 Aug
32.	Cuckoo	0	0	9	5	0	0	0	14	7	7	4 (22 Apr)	11	9	19 Apr	24 May
33.	Stock Dove	19	122	25	14	1	1	3	185	28	157	52 ( 4 Mar)	55	46	14 Feb	12 Aug
34.	Woodpigeon	141	4139	526	342	12	2	1	5163	343	4820	1134 (24 Mar)	72	60	14 Feb	12 Aug
35.	Turtle Dove	0	0	0	2	0	0	0	2	0	2	2 ( 8 May)	1	1	8 May	8 May
36.	Collared Dove	5	19	94	36	2	5	0	161	106	55	14 ( 6 Apr)	49	41	17 Feb	26 Jul
37.	Crane	0	17	0	0	0	0	0	17	0	17	15 (30 Mar)	2	2	4 Mar	30 Mar
38.	Great Crested Grebe	39	16	5	5	0	3	1	69	40	29	9 (14 Feb)	23	19	10 Feb	6 Aug
39.	Oystercatcher	26	80	238	247	30	112	2	735	300	435	46 (15 Jul)	53	44	18 Feb	12 Aug
40.	Avocet	0	9	16	0	0	2	0	27	2	25	12 (19 Apr)	5	4	30 Mar	16 Jul
41.	Grey Plover	0	0	0	12	0	0	2	14	2	12	8 (21 May)	5	4	12 May	12 Aug
42.	Golden Plover	0	163	7	0	0	0	80	250	140	110	83 (16 Mar)	13	11	4 Mar	12 Aug
43.	Dotterel	0	0	0	1	0	0	0	1	0	1	1 (15 May)	1	1	15 May	15 May
44.	Ringed Plover	0	45	0	58	0	0	0	103	45	58	58 (24 May)	5	4	4 Mar	24 May
45.	Little Ringed Plover	0	5	16	3	0	3	0	27	7	20	5 ( 6 Apr)	19	16	16 Mar	16 Jul
46.	Lapwing	193	886	14	12	0	45	4	1154	186	968	376 ( 6 Mar)	36	30	17 Feb	7 Aug
47.	Whimbrel	0	1	361	26	0	14	1	403	14	389	133 (22 Apr)	31	26	31 Mar	7 Aug
48.	Curlew	16	61	2	1	10	14	1	105	21	84	32 (10 Mar)	30	25	14 Feb	7 Aug
49.	Bar-tailed Godwit	0	1	12	8	1	0	0	22	7	15	6 (29 Apr)	11	9	28 Mar	27 Jun
50.	Black-tailed Godwit	0	20	21	0	0	0	0	41	0	41	20 ( 6 Apr)	7	6	15 Mar	6 Apr
51.	Icelandic Black-tailed Godwit	0	1	0	0	0	0	0	1	0	1	1 (16 Mar)	1	1	16 Mar	16 Mar
52.	Snipe	1	11	4	0	0	2	40	58	41	17	32 (12 Aug)	14	12	21 Feb	12 Aug
53.	Common Sandpiper	0	0	0	1	0	0	0	1	0	1	1 (12 May)	1	1	12 May	12 May
54.	Green Sandpiper	0	1	36	2	1	4	9	53	13	40	17 (19 Apr)	23	19	25 Mar	12 Aug
55.	Wood Sandpiper	0	0	1	13	0	0	1	15	1	14	10 ( 7 May)	6	5	19 Apr	12 Aug
56.	Redshank	0	15	24	19	0	0	0	58	5	53	10 (19 Apr)	22	18	6 Mar	25 May
57.	Spotted Redshank	1	0	0	2	0	2	1	6	4	2	2 ( 8 May)	5	4	20 Feb	9 Aug
58.	Greenshank	0	0	9	18	0	0	2	29	2	27	5 ( 6 May)	13	11	18 Apr	12 Aug
59.	Turnstone	0	0	0	0	0	0	1	1	0	1	1 ( 9 Aug)	1	1	9 Aug	9 Aug
60.	Knot	0	0	0	3	0	16	0	19	16	3	16 (16 Jul)	2	2	21 May	16 Jul
	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
61.	Ruff	0	34	29	0	0	5	0	68	5	63	24 (24 Mar)	7	6	24 Mar	16 Jul
62.	wader sp.	0	36	3	10	0	1	0	50	3	47	25 (28 Mar)	8	7	10 Mar	16 Jul
63.	Dunlin	0	21	3	0	0	0	0	24	18	6	6 ( 4 Mar)	7	6	4 Mar	21 Apr
64.	Little Tern	0	0	18	3	0	0	0	21	0	21	10 (21 Apr)	5	4	19 Apr	4 May
65.	Gull-billed Tern	0	0	0	2	0	0	0	2	0	2	2 ( 8 May)	1	1	8 May	8 May
66.	Arctic Tern	0	0	0	4	0	0	0	4	2	2	2 ( 6 May)	2	2	6 May	7 May
67.	Common Tern	0	0	119	170	0	35	25	349	42	307	52 ( 2 May)	28	23	7 Apr	12 Aug
68.	Sandwich Tern	0	86	154	52	0	16	13	321	128	193	60 ( 8 Apr)	36	30	12 Mar	12 Aug
69.	Little Gull	0	50	80	0	0	0	0	130	1	129	53 (22 Apr)	10	8	10 Mar	22 Apr
70.	Kittiwake	2	0	0	0	0	0	0	2	2	0	2 (10 Feb)	1	1	10 Feb	10 Feb
71.	Black-headed Gull	57	1444	262	1208	16	875	198	4060	1806	2254	546 (16 Jul)	63	52	14 Feb	12 Aug
72.	Mediterranean Gull	0	2	48	3	0	5	0	58	13	45	24 (19 Apr)	11	9	24 Mar	30 Jul
73.	Common Gull	175	275	33	28	2	1	6	520	227	293	100 (17 Mar)	46	38	14 Feb	12 Aug
74.	Herring Gull	164	374	195	55	0	0	25	813	114	699	142 ( 8 Apr)	36	30	16 Feb	12 Aug
75.	Great Black-backed Gull	2	15	5	2	0	0	0	24	2	22	4 (12 Mar)	17	14	22 Feb	26 May
76.	Glaucous Gull	0	1	0	0	0	0	0	1	1	0	1 (24 Mar)	1	1	24 Mar	24 Mar
77.	Lesser Black-backed Gull	33	1925	716	98	0	210	324	3306	632	2674	324 (12 Aug)	64	53	17 Feb	12 Aug
78.	Razorbill	1	0	0	0	0	0	0	1	0	1	1 (14 Feb)	1	1	14 Feb	14 Feb
79.	Razorbill/Guillemot	190	6	0	0	0	0	0	196	16	180	178 (24 Feb)	7	6	10 Feb	18 Mar
80.	Red-throated Diver	37	88	8	2	0	0	0	135	60	75	28 (24 Mar)	23	19	10 Feb	6 May
81.	Black-throated Diver	0	2	0	0	0	0	0	2	0	2	1 (18 Mar)	2	2	18 Mar	28 Mar
82.	diver sp.	2	0	0	0	0	0	0	2	0	2	2 (24 Feb)	1	1	24 Feb	24 Feb
83.	White Stork	0	0	3	2	0	0	0	5	0	5	3 ( 7 Apr)	4	3	7 Apr	27 May
84.	Gannet	10	32	24	16	6	41	1	130	47	83	39 ( 3 Jul)	41	34	10 Feb	12 Aug
85.	Cormorant	318	1787	749	260	210	156	458	3938	738	3200	245 (12 Mar)	64	53	10 Feb	12 Aug
86.	Cormorant (p. c. carbo)	0	0	1	0	0	0	0	1	1	0	1 (10 Apr)	1	1	10 Apr	10 Apr
87.	Spoonbill	0	115	159	177	4	5	1	461	13	448	98 (30 Mar)	43	36	6 Mar	12 Aug
88.	Little Egret	0	0	0	0	0	0	1	1	1	0	1 ( 9 Aug)	1	1	9 Aug	9 Aug
89.	Great White Egret	3	6	19	3	0	1	0	32	4	28	6 ( 7 Apr)	18	15	18 Feb	15 Jul
90.	Grey Heron	2	196	87	31	9	78	9	412	98	314	79 (16 Mar)	66	55	10 Feb	12 Aug
	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
91.	Purple Heron	0	0	4	3	0	8	3	18	11	7	7 (15 Jul)	10	8	16 Apr	7 Aug
92.	Osprey	0	1	1	5	0	0	0	7	0	7	1 (30 Mar)	8	7	30 Mar	25 May
93.	Honey Buzzard	0	0	0	4	0	0	0	4	1	3	2 (24 May)	4	3	21 May	27 May
94.	Sparrowhawk	1	7	17	6	0	1	1	33	6	27	5 (24 Mar)	25	21	19 Feb	9 Aug
95.	Goshawk	0	2	1	0	0	1	0	4	2	2	1 (12 Mar)	5	4	12 Mar	30 Jul
96.	Marsh Harrier	0	19	38	42	1	0	2	102	11	91	10 (21 May)	45	37	7 Mar	9 Aug
97.	Hen Harrier	0	2	0	0	0	0	0	2	1	1	1 (10 Mar)	2	2	10 Mar	24 Mar
98.	Pallid Harrier	0	0	0	1	0	0	0	1	0	1	1 (11 May)	1	1	11 May	11 May
99.	Red Kite	0	3	0	0	0	0	0	3	0	3	1 ( 4 Mar)	4	3	4 Mar	24 Mar
100.	Black Kite	0	0	1	0	0	0	0	1	0	1	1 ( 7 Apr)	1	1	7 Apr	7 Apr
101.	White-tailed Eagle	1	0	0	1	0	0	0	2	0	2	1 (18 Feb)	2	2	18 Feb	5 May
102.	Common Buzzard	1	2	0	8	0	0	0	11	0	11	4 ( 8 May)	8	7	17 Feb	21 May
103.	Short-eared Owl	0	0	1	1	0	0	0	2	0	2	1 ( 7 Apr)	2	2	7 Apr	8 May
104.	European Bee-eater	0	0	0	3	0	0	0	3	1	2	1 ( 5 May)	4	3	5 May	12 May
105.	Great Spotted Woodpecker	2	5	26	2	0	6	16	57	16	41	6 ( 9 Aug)	29	24	14 Feb	12 Aug
106.	Kestrel	0	4	6	12	0	0	1	23	4	19	4 ( 7 Apr)	18	15	14 Mar	3 Aug
107.	falcon sp.	0	0	1	0	0	0	0	1	0	1	1 ( 7 Apr)	1	1	7 Apr	7 Apr
108.	Merlin	0	0	3	4	0	0	0	7	0	7	2 ( 7 May)	7	6	10 Apr	11 May
109.	Hobby	0	0	0	5	0	3	0	8	2	6	1 ( 6 May)	10	8	6 May	30 Jul
110.	Peregrine	1	6	6	2	0	0	0	15	5	10	3 (24 Mar)	14	12	23 Feb	21 May
111.	Golden Oriole	0	0	0	13	0	0	0	13	3	10	3 ( 7 May)	12	10	5 May	27 May
112.	Jay	0	0	0	4	0	0	0	4	2	2	2 ( 6 May)	2	2	6 May	24 May
113.	Magpie	0	10	13	0	0	0	0	23	0	23	8 (13 Apr)	6	5	12 Mar	17 Apr
114.	Jackdaw	11	250	202	228	0	0	3	694	98	596	66 ( 6 Apr)	54	45	18 Feb	12 Aug
115.	Rook	0	0	10	7	0	0	0	17	8	9	5 ( 8 Apr)	10	8	8 Apr	24 May
116.	Carrion Crow	5	34	155	40	0	0	2	236	40	196	43 (10 Apr)	40	33	18 Feb	3 Aug
117.	Hooded Crow	0	1	0	1	0	0	0	2	1	1	1 ( 6 Mar)	2	2	6 Mar	11 May
118.	Raven	0	0	1	0	0	0	0	1	1	0	1 ( 6 Apr)	1	1	6 Apr	6 Apr
119.	Coal Tit	0	1	0	0	0	0	0	1	0	1	1 (14 Mar)	1	1	14 Mar	14 Mar
120.	Blue Tit	5	5	1	0	0	0	0	11	0	11	5 (18 Feb)	6	5	18 Feb	4 Apr
	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
121.	Great Tit	16	24	10	1	0	0	0	51	2	49	9 (20 Feb)	22	18	18 Feb	21 May
122.	Wood Lark	8	63	2	1	0	0	0	74	0	74	27 ( 4 Mar)	18	15	18 Feb	24 May
123.	Skylark	71	311	9	0	0	0	0	391	2	389	172 ( 4 Mar)	31	26	17 Feb	21 Apr
124.	Sand Martin	0	0	40	95	1	10	0	146	31	115	25 ( 8 May)	36	30	7 Apr	19 Jul
125.	Swallow	0	1	1426	1923	0	94	166	3610	1204	2406	537 (29 Apr)	51	42	15 Mar	12 Aug
126.	House Martin	0	0	79	449	0	11	34	573	88	485	136 (26 May)	34	28	6 Apr	12 Aug
127.	Long-tailed Tit	0	12	0	0	0	0	0	12	0	12	8 (12 Mar)	2	2	10 Mar	12 Mar
128.	Willow Warbler	0	0	1	0	0	0	0	1	1	0	1 (10 Apr)	1	1	10 Apr	10 Apr
129.	Chiffchaff	0	9	22	1	0	0	0	32	2	30	10 ( 7 Apr)	18	15	15 Mar	4 May
130.	Chiffchaff/Willow Warbler	0	0	1	4	0	0	0	5	0	5	2 ( 5 May)	5	4	6 Apr	21 May
131.	Garden Warbler	0	0	0	1	0	0	0	1	0	1	1 ( 6 May)	1	1	6 May	6 May
132.	Goldcrest	2	0	0	0	0	0	0	2	2	0	2 (18 Feb)	1	1	18 Feb	18 Feb
133.	Starling	196	4505	777	49	122	80	15	5744	447	5297	1750 (16 Mar)	67	56	10 Feb	12 Aug
134.	Song Thrush	3	437	291	0	0	1	0	732	30	702	307 (16 Mar)	36	30	18 Feb	16 Jul
135.	Mistle Thrush	17	130	6	3	2	0	0	158	10	148	44 (16 Mar)	29	24	17 Feb	14 Jun
136.	Redwing	1	791	5	0	0	0	0	797	14	783	734 (16 Mar)	16	13	19 Feb	12 Apr
137.	Blackbird	0	13	2	0	0	1	1	17	6	11	6 (24 Mar)	10	8	10 Mar	6 Aug
138.	Fieldfare	1	14	16	0	0	0	0	31	1	30	12 ( 7 Apr)	11	9	17 Feb	19 Apr
139.	Ring Ouzel	0	1	143	1	0	0	0	145	44	101	26 (17 Apr)	22	18	30 Mar	7 May
140.	Spotted Flycatcher	0	0	0	56	0	0	0	56	2	54	10 ( 7 May)	13	11	2 May	27 May
141.	Black Redstart	0	0	1	0	0	0	0	1	1	0	1 ( 7 Apr)	1	1	7 Apr	7 Apr
142.	Wheatear	0	1	5	9	0	0	0	15	1	14	4 ( 6 May)	10	8	27 Mar	24 May
143.	Tree Sparrow	0	11	1	2	0	0	0	14	2	12	4 (15 Mar)	8	7	6 Mar	27 May
144.	House Sparrow	0	4	4	2	0	12	0	22	4	18	12 ( 3 Jul)	10	8	6 Mar	3 Jul
145.	Dunnock	2	29	11	0	0	0	2	44	5	39	6 ( 7 Mar)	20	17	22 Feb	12 Aug
146.	Blue-headed Wagtail	0	0	108	178	0	2	0	288	6	282	71 ( 7 May)	25	21	2 Apr	30 Jul
147.	Yellow Wagtail (flavissima)	0	0	5	2	0	0	0	7	0	7	2 (19 Apr)	7	6	10 Apr	24 May
148.	Grey-headed Wagtail	0	0	0	80	0	0	0	80	0	80	47 (21 May)	12	10	2 May	26 May
149.	Yellow wagtail sp.	0	0	231	350	0	0	17	598	37	561	103 (22 Apr)	23	19	7 Apr	12 Aug
150.	Citrine Wagtail	0	0	1	0	0	0	0	1	0	1	1 (19 Apr)	1	1	19 Apr	19 Apr
	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
151.	Grey Wagtail	0	8	2	3	1	0	0	14	0	14	4 (16 Mar)	11	9	15 Mar	20 Jun
152.	White Wagtail	0	288	270	24	0	12	0	594	32	562	138 ( 2 Apr)	43	36	6 Mar	30 Jul
153.	alba wagtail sp.	0	277	81	4	0	5	5	372	43	329	102 (24 Mar)	23	19	4 Mar	12 Aug
154.	Pied Wagtail	0	17	2	0	0	0	0	19	0	19	5 (15 Mar)	13	11	4 Mar	12 Apr
155.	Meadow Pipit	22	1328	5173	165	1	13	10	6712	36	6676	1032 (12 Apr)	71	59	10 Feb	12 Aug
156.	Tree Pipit	0	2	92	58	0	0	8	160	7	153	25 (22 Apr)	35	29	30 Mar	12 Aug
157.	Rock Pipit	0	5	0	0	0	0	0	5	0	5	1 ( 5 Mar)	6	5	5 Mar	25 Mar
158.	Rock Pipit/Water Pipit	0	6	1	0	0	0	0	7	0	7	3 (24 Mar)	6	5	4 Mar	12 Apr
159.	Chaffinch	108	867	118	21	0	1	1	1116	23	1093	327 (24 Mar)	53	44	14 Feb	12 Aug
160.	Brambling	3	31	45	0	0	0	0	79	2	77	18 ( 6 Apr)	24	20	18 Feb	21 Apr
161.	Hawfinch	0	9	20	51	0	0	0	80	10	70	13 (21 May)	29	24	7 Mar	27 May
162.	Bullfinch	1	0	5	1	0	0	0	7	2	5	1 (18 Feb)	8	7	18 Feb	21 May
163.	Greenfinch	56	185	72	1	0	10	15	339	78	261	36 (12 Mar)	53	44	14 Feb	12 Aug
164.	Linnet	0	119	460	97	0	14	0	690	42	648	82 ( 7 Apr)	52	43	4 Mar	16 Jul
165.	Lesser Redpoll	0	0	0	4	0	0	0	4	1	3	2 ( 6 May)	4	3	6 May	11 May
166.	redpoll sp.	12	7	14	0	0	0	0	33	5	28	12 (14 Feb)	17	14	14 Feb	21 Apr
167.	Crossbill	0	0	6	14	0	7	0	27	6	21	6 (13 Apr)	11	9	13 Apr	16 Jul
168.	Goldfinch	10	19	91	22	0	8	11	161	36	125	21 (19 Apr)	47	39	10 Feb	12 Aug
169.	Serin	0	0	1	2	0	0	0	3	1	2	1 (19 Apr)	4	3	19 Apr	6 May
170.	Siskin	73	139	38	7	0	1	0	258	52	206	29 (18 Feb)	46	38	10 Feb	16 Jul
171.	Lapland Bunting	1	0	0	0	0	1	0	2	0	2	1 (18 Feb)	2	2	18 Feb	26 Jul
172.	Snow Bunting	15	1	0	0	0	0	0	16	0	16	15 (20 Feb)	2	2	20 Feb	7 Mar
173.	Yellowhammer	1	0	0	0	0	0	0	1	1	0	1 (18 Feb)	1	1	18 Feb	18 Feb
174.	Reed Bunting	5	218	16	1	0	0	0	240	2	238	39 ( 7 Mar)	34	28	17 Feb	11 May
	Other species
	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Brimstone	0	0	1	0	0	0	0	1	0	1	1 ( 7 Apr)	1	1	7 Apr	7 Apr
2.	European Peacock	0	0	2	0	0	0	0	2	0	2	2 ( 7 Apr)	1	1	7 Apr	7 Apr
	Other species
	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Bumblebee sp.	0	0	14	0	0	0	0	14	2	12	10 (10 Apr)	4	3	6 Apr	11 Apr
	Species	Feb	Mar	Apr	May	Jun	Jul	Aug	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
	Totals	3017	25704	19378	15523	1560	4136	1618	70936	11740	59196		100	83
	Observation hours	26:50	69:54	84:03	72:21	9:55	25:10	16:10	304:23

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Totals Berkheide (Katwijk) 2018