Also present

Totals Berkheide (Katwijk) 2025

	Species	Feb	Mar	Apr	May	Jun	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Dark-bellied Brent Goose	0	11	43	75	0	129	33	96	40 (10 May)	16	7	20 Mar	10 May
2.	Canada Goose	6	91	28	1	0	126	62	64	33 ( 2 Mar)	44	20	25 Feb	9 May
3.	Barnacle Goose	0	1657	2638	1576	0	5871	444	5427	1126 (20 Mar)	84	38	2 Mar	20 May
4.	Greylag Goose	22	419	144	73	0	658	276	382	92 ( 8 Mar)	78	35	17 Feb	19 May
5.	goose sp.	1200	1019	314	830	0	3363	19	3344	1200 (17 Feb)	20	9	17 Feb	10 May
6.	Pink-footed Goose	0	7	0	0	0	7	0	7	7 (20 Mar)	2	1	20 Mar	20 Mar
7.	Tundra Bean Goose	0	3	0	0	0	3	0	3	3 (20 Mar)	2	1	20 Mar	20 Mar
8.	Eurasian White-fronted Goose	6	3	0	0	0	9	0	9	6 (17 Feb)	4	2	17 Feb	7 Mar
9.	Mute Swan	0	0	14	19	0	33	20	13	8 (11 May)	22	10	12 Apr	12 May
10.	Egyptian Goose	0	131	168	18	0	317	79	238	44 (15 Apr)	44	20	2 Mar	11 May
11.	Shelduck	0	33	82	61	0	176	42	134	23 (10 May)	56	25	8 Mar	20 May
12.	Ruddy Shelduck	0	0	0	1	0	1	0	1	1 (11 May)	2	1	11 May	11 May
13.	Shoveler	0	181	277	2	0	460	48	412	176 (12 Apr)	33	15	8 Mar	11 May
14.	Gadwall	0	8	11	22	0	41	6	35	10 (19 May)	29	13	8 Mar	20 May
15.	Wigeon	0	44	0	0	0	44	30	14	30 ( 2 Mar)	7	3	2 Mar	20 Mar
16.	Mallard	0	4	1	3	0	8	2	6	3 (19 Mar)	11	5	19 Mar	19 May
17.	Pintail	0	17	0	0	0	17	0	17	8 ( 8 Mar)	7	3	8 Mar	22 Mar
18.	Teal	0	15	19	0	0	34	0	34	15 ( 8 Mar)	9	4	8 Mar	27 Apr
19.	Red-crested Pochard	0	0	9	2	0	11	0	11	9 ( 4 Apr)	7	3	4 Apr	11 May
20.	Pochard	0	0	2	16	0	18	0	18	5 (10 May)	16	7	19 Apr	12 May
21.	Tufted Duck	0	0	0	10	0	10	0	10	4 (11 May)	7	3	10 May	20 May
22.	Eider	0	41	15	15	0	71	33	38	18 (21 Mar)	36	16	2 Mar	13 May
23.	Common Scoter	0	30	104	58	0	192	55	137	46 (10 May)	42	19	2 Mar	20 May
24.	Goldeneye	0	4	0	0	0	4	2	2	4 ( 9 Mar)	2	1	9 Mar	9 Mar
25.	Goosander	2	12	1	0	0	15	8	7	6 ( 8 Mar)	13	6	17 Feb	6 Apr
26.	Red-breasted Merganser	0	1	20	6	0	27	7	20	8 (19 Apr)	16	7	21 Mar	1 May
27.	Swift	0	0	304	3190	0	3494	10	3484	885 (11 May)	29	13	23 Apr	20 May
28.	Cuckoo	0	0	2	5	2	9	2	7	2 (12 May)	16	7	27 Apr	17 Jun
29.	Stock Dove	6	37	24	6	0	73	9	64	11 ( 6 Mar)	53	24	17 Feb	12 May
30.	Woodpigeon	2	2923	1480	249	0	4654	347	4307	1352 (19 Mar)	82	37	25 Feb	20 May
	Species	Feb	Mar	Apr	May	Jun	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
31.	Turtle Dove	0	0	0	1	0	1	0	1	1 (12 May)	2	1	12 May	12 May
32.	Collared Dove	0	4	16	12	0	32	2	30	5 (30 Apr)	38	17	5 Mar	20 May
33.	Great Crested Grebe	0	9	0	0	0	9	4	5	5 ( 8 Mar)	7	3	7 Mar	19 Mar
34.	Oystercatcher	0	13	198	198	4	413	193	220	70 (11 May)	51	23	2 Mar	17 Jun
35.	Avocet	0	38	7	4	0	49	2	47	21 ( 8 Mar)	13	6	8 Mar	11 May
36.	Grey Plover	0	0	5	36	0	41	0	41	13 (11 May)	20	9	5 Apr	20 May
37.	Golden Plover	0	2	18	0	0	20	0	20	18 ( 4 Apr)	7	3	8 Mar	4 Apr
38.	Dotterel	0	0	1	0	0	1	0	1	1 (30 Apr)	2	1	30 Apr	30 Apr
39.	Ringed Plover	0	6	0	127	0	133	0	133	47 (19 May)	13	6	21 Mar	20 May
40.	Little Ringed Plover	0	2	25	3	0	30	9	21	8 (12 Apr)	24	11	22 Mar	12 May
41.	Lapwing	5	23	39	30	2	99	32	67	9 ( 8 Mar)	62	28	26 Feb	17 Jun
42.	Whimbrel	0	0	435	94	0	529	2	527	82 (12 Apr)	47	21	3 Apr	13 May
43.	Curlew	0	6	54	0	1	61	1	60	36 ( 7 Apr)	20	9	9 Mar	17 Jun
44.	Bar-tailed Godwit	0	0	26	4	0	30	0	30	10 (27 Apr)	16	7	19 Apr	8 May
45.	Black-tailed Godwit	0	1	0	0	0	1	0	1	1 (21 Mar)	2	1	21 Mar	21 Mar
46.	Snipe	1	8	103	0	0	112	0	112	57 ( 4 Apr)	24	11	17 Feb	12 Apr
47.	Green Sandpiper	0	2	215	1	0	218	1	217	67 ( 4 Apr)	36	16	19 Mar	1 May
48.	Wood Sandpiper	0	0	7	2	0	9	0	9	4 (30 Apr)	9	4	15 Apr	10 May
49.	Redshank	0	9	63	54	0	126	1	125	31 ( 6 Apr)	33	15	8 Mar	20 May
50.	Spotted Redshank	0	0	5	11	0	16	0	16	11 ( 9 May)	4	2	30 Apr	9 May
51.	Greenshank	0	0	12	19	0	31	0	31	8 (11 May)	18	8	6 Apr	13 May
52.	Ruff	0	0	24	3	0	27	0	27	21 ( 3 Apr)	7	3	3 Apr	11 May
53.	wader sp.	0	0	43	17	0	60	0	60	35 ( 6 Apr)	11	5	6 Apr	11 May
54.	Dunlin	0	0	9	1	0	10	0	10	9 ( 4 Apr)	4	2	4 Apr	8 May
55.	Calidris sp.	0	0	0	37	0	37	0	37	27 (13 May)	4	2	13 May	19 May
56.	Little Tern	0	0	0	5	0	5	0	5	5 (20 May)	2	1	20 May	20 May
57.	Gull-billed Tern	0	0	1	0	0	1	0	1	1 (30 Apr)	2	1	30 Apr	30 Apr
58.	Caspian Tern	0	0	4	0	0	4	0	4	4 (12 Apr)	2	1	12 Apr	12 Apr
59.	Black Tern	0	0	1	8	0	9	0	9	4 (12 May)	9	4	15 Apr	12 May
60.	Common Tern	0	0	168	142	0	310	0	310	120 ( 9 May)	24	11	6 Apr	11 May
	Species	Feb	Mar	Apr	May	Jun	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
61.	Sandwich Tern	0	0	208	6	0	214	120	94	124 (30 Apr)	36	16	1 Apr	11 May
62.	Little Gull	0	3	148	8	0	159	81	78	80 (15 Apr)	16	7	17 Mar	1 May
63.	Black-headed Gull	0	940	335	209	0	1484	87	1397	280 (20 Mar)	56	25	2 Mar	20 May
64.	Mediterranean Gull	0	0	64	6	0	70	19	51	21 (23 Apr)	27	12	3 Apr	20 May
65.	Common Gull	0	498	2484	83	0	3065	42	3023	1123 ( 8 Apr)	58	26	2 Mar	20 May
66.	Herring Gull	16	911	199	67	0	1193	58	1135	521 ( 2 Mar)	49	22	26 Feb	20 May
67.	Great Black-backed Gull	0	4	9	0	0	13	2	11	3 (26 Apr)	22	10	7 Mar	29 Apr
68.	Lesser Black-backed Gull	13	1831	2050	711	0	4605	76	4529	513 (20 May)	84	38	17 Feb	20 May
69.	Red-throated Diver	5	4	2	0	0	11	4	7	5 (26 Feb)	11	5	26 Feb	27 Apr
70.	diver sp.	0	1	0	0	0	1	0	1	1 (20 Mar)	2	1	20 Mar	20 Mar
71.	Fulmar	0	0	0	1	0	1	0	1	1 (10 May)	2	1	10 May	10 May
72.	White Stork	0	0	10	2	0	12	0	12	6 ( 4 Apr)	11	5	4 Apr	12 May
73.	Gannet	0	49	2	1	0	52	11	41	25 ( 2 Mar)	20	9	2 Mar	10 May
74.	Cormorant	41	1067	1010	163	0	2281	204	2077	413 (19 Mar)	82	37	17 Feb	13 May
75.	Spoonbill	1	94	276	84	1	456	6	450	70 (15 Apr)	64	29	25 Feb	17 Jun
76.	Bittern	0	0	1	1	0	2	0	2	1 (26 Apr)	4	2	26 Apr	13 May
77.	Little Egret	0	0	1	0	0	1	0	1	1 (30 Apr)	2	1	30 Apr	30 Apr
78.	Great White Egret	1	8	16	29	0	54	1	53	13 (12 May)	36	16	25 Feb	13 May
79.	Grey Heron	2	103	243	92	2	442	22	420	133 ( 4 Apr)	87	39	25 Feb	17 Jun
80.	Purple Heron	0	0	1	4	0	5	0	5	2 (13 May)	9	4	23 Apr	13 May
81.	Osprey	0	0	3	0	0	3	1	2	1 ( 7 Apr)	7	3	7 Apr	27 Apr
82.	Honey Buzzard	0	0	0	2	0	2	0	2	1 (12 May)	4	2	12 May	19 May
83.	Sparrowhawk	0	4	23	4	0	31	2	29	8 ( 4 Apr)	31	14	19 Mar	19 May
84.	Goshawk	0	0	2	0	0	2	1	1	1 ( 3 Apr)	4	2	3 Apr	4 Apr
85.	Marsh Harrier	0	16	49	23	0	88	4	84	13 ( 6 Apr)	56	25	19 Mar	20 May
86.	Hen Harrier	1	3	4	0	0	8	7	1	2 ( 3 Apr)	16	7	26 Feb	5 Apr
87.	Montagu's Harrier	0	0	0	1	0	1	0	1	1 (10 May)	2	1	10 May	10 May
88.	Red Kite	0	0	1	0	0	1	1	0	1 ( 2 Apr)	2	1	2 Apr	2 Apr
89.	Black Kite	0	0	0	1	0	1	0	1	1 (12 May)	2	1	12 May	12 May
90.	Common Buzzard	0	0	6	0	0	6	1	5	4 ( 3 Apr)	7	3	3 Apr	12 Apr
	Species	Feb	Mar	Apr	May	Jun	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
91.	Short-eared Owl	0	2	0	0	0	2	0	2	1 (20 Mar)	4	2	20 Mar	21 Mar
92.	European Bee-eater	0	0	1	20	0	21	1	20	9 (19 May)	9	4	27 Apr	20 May
93.	Great Spotted Woodpecker	2	10	4	0	0	16	6	10	2 (26 Feb)	24	11	26 Feb	15 Apr
94.	Kestrel	0	4	81	4	0	89	2	87	40 ( 4 Apr)	38	17	21 Mar	13 May
95.	Merlin	0	0	10	4	0	14	0	14	5 ( 4 Apr)	18	8	4 Apr	12 May
96.	Hobby	0	0	3	3	1	7	2	5	2 (10 May)	13	6	15 Apr	17 Jun
97.	Peregrine	0	3	0	0	0	3	0	3	1 ( 2 Mar)	7	3	2 Mar	22 Mar
98.	Golden Oriole	0	0	0	7	0	7	0	7	3 (11 May)	9	4	9 May	13 May
99.	Jay	0	0	2	0	0	2	0	2	1 ( 6 Apr)	4	2	6 Apr	15 Apr
100.	Magpie	0	61	15	1	0	77	9	68	17 (20 Mar)	33	15	2 Mar	20 May
101.	Jackdaw	11	161	170	130	0	472	58	414	84 ( 1 May)	76	34	25 Feb	13 May
102.	Rook	0	1	9	1	0	11	2	9	3 (12 Apr)	16	7	9 Mar	9 May
103.	Carrion Crow	2	56	202	17	0	277	21	256	38 ( 7 Apr)	60	27	25 Feb	12 May
104.	Blue Tit	0	10	1	0	0	11	3	8	4 ( 2 Mar)	11	5	2 Mar	12 Apr
105.	Great Tit	1	3	0	0	0	4	1	3	2 ( 8 Mar)	7	3	25 Feb	20 Mar
106.	Penduline Tit	0	0	0	1	0	1	0	1	1 ( 9 May)	2	1	9 May	9 May
107.	Wood Lark	1	7	1	0	0	9	0	9	4 (21 Mar)	11	5	25 Feb	27 Apr
108.	Skylark	1	27	0	0	0	28	1	27	11 (21 Mar)	13	6	25 Feb	23 Mar
109.	Sand Martin	0	3	840	95	0	938	87	851	204 (27 Apr)	60	27	21 Mar	20 May
110.	Swallow	0	1	863	881	0	1745	150	1595	330 (27 Apr)	58	26	22 Mar	20 May
111.	House Martin	0	0	22	625	0	647	2	645	203 (12 May)	33	15	6 Apr	20 May
112.	Red-rumped Swallow	0	0	0	1	0	1	0	1	1 (20 May)	2	1	20 May	20 May
113.	Willow Warbler	0	0	3	0	0	3	0	3	2 (15 Apr)	4	2	7 Apr	15 Apr
114.	Chiffchaff	0	21	0	0	0	21	4	17	9 (21 Mar)	18	8	7 Mar	23 Mar
115.	Chiffchaff/Willow Warbler	0	0	18	0	0	18	0	18	5 ( 8 Apr)	16	7	1 Apr	26 Apr
116.	Lesser Whitethroat	0	0	0	2	0	2	0	2	2 (12 May)	2	1	12 May	12 May
117.	Whitethroat	0	0	1	0	0	1	1	0	1 (30 Apr)	2	1	30 Apr	30 Apr
118.	Starling	15	1596	98	5	136	1850	169	1681	748 (21 Mar)	80	36	17 Feb	17 Jun
119.	Song Thrush	0	338	7191	0	0	7529	4	7525	5625 ( 7 Apr)	44	20	8 Mar	27 Apr
120.	Mistle Thrush	1	42	100	0	0	143	0	143	32 ( 3 Apr)	38	17	25 Feb	26 Apr
	Species	Feb	Mar	Apr	May	Jun	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
121.	Redwing	1	25	490	0	0	516	4	512	416 ( 7 Apr)	22	10	25 Feb	12 Apr
122.	Blackbird	0	2	1	0	0	3	1	2	2 (21 Mar)	4	2	21 Mar	3 Apr
123.	Fieldfare	0	0	3	0	0	3	0	3	3 (12 Apr)	2	1	12 Apr	12 Apr
124.	Ring Ouzel	0	4	97	3	0	104	1	103	29 (12 Apr)	33	15	22 Mar	1 May
125.	Spotted Flycatcher	0	0	6	34	0	40	0	40	13 (12 May)	11	5	30 Apr	13 May
126.	Whinchat	0	0	0	1	0	1	0	1	1 ( 9 May)	2	1	9 May	9 May
127.	Wheatear	0	0	4	6	0	10	3	7	3 ( 1 May)	16	7	8 Apr	10 May
128.	House Sparrow	0	0	1	0	0	1	0	1	1 ( 7 Apr)	2	1	7 Apr	7 Apr
129.	Dunnock	0	7	2	0	0	9	0	9	4 ( 8 Mar)	13	6	8 Mar	26 Apr
130.	Blue-headed Wagtail	0	0	105	8	0	113	1	112	47 ( 8 Apr)	27	12	1 Apr	11 May
131.	Yellow Wagtail (flavissima)	0	0	5	4	0	9	0	9	3 (11 May)	16	7	6 Apr	11 May
132.	Grey-headed Wagtail	0	0	0	32	0	32	0	32	17 (11 May)	9	4	9 May	13 May
133.	Yellow wagtail sp.	0	0	377	302	0	679	10	669	191 (15 Apr)	38	17	3 Apr	20 May
134.	Grey Wagtail	0	9	6	1	0	16	0	16	6 (21 Mar)	20	9	18 Mar	19 May
135.	White Wagtail	2	172	137	6	0	317	14	303	66 (22 Mar)	67	30	26 Feb	13 May
136.	alba wagtail sp.	0	177	63	2	0	242	18	224	87 (21 Mar)	36	16	6 Mar	11 May
137.	Motacilla (wagtail) sp.	0	2	0	0	0	2	0	2	2 (20 Mar)	2	1	20 Mar	20 Mar
138.	Pied Wagtail	0	14	1	1	0	16	1	15	6 ( 8 Mar)	16	7	8 Mar	11 May
139.	Meadow Pipit	2	410	5194	42	0	5648	12	5636	2444 (15 Apr)	82	37	17 Feb	11 May
140.	Tree Pipit	0	2	149	36	0	187	0	187	42 (12 Apr)	58	26	23 Mar	20 May
141.	Rock Pipit	0	5	0	0	0	5	0	5	3 (21 Mar)	7	3	8 Mar	22 Mar
142.	Rock Pipit/Water Pipit	0	4	1	0	0	5	0	5	2 (20 Mar)	9	4	2 Mar	4 Apr
143.	pipit sp.	0	0	0	1	0	1	0	1	1 (11 May)	2	1	11 May	11 May
144.	Chaffinch	112	1631	72	4	0	1819	23	1796	977 ( 9 Mar)	69	31	17 Feb	12 May
145.	Brambling	6	17	4	0	0	27	0	27	5 ( 9 Mar)	29	13	17 Feb	14 Apr
146.	Hawfinch	0	10	20	121	0	151	2	149	36 (11 May)	40	18	8 Mar	20 May
147.	Bullfinch	0	1	1	0	0	2	0	2	1 (19 Mar)	4	2	19 Mar	8 Apr
148.	Greenfinch	0	27	10	3	0	40	3	37	5 (20 Mar)	31	14	2 Mar	10 May
149.	Linnet	2	121	233	31	0	387	11	376	50 (21 Mar)	76	34	25 Feb	12 May
150.	redpoll sp.	0	5	2	3	0	10	3	7	3 (20 Mar)	16	7	7 Mar	11 May
	Species	Feb	Mar	Apr	May	Jun	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
151.	Crossbill	0	0	0	0	2	2	2	0	2 (17 Jun)	2	1	17 Jun	17 Jun
152.	Goldfinch	2	89	52	0	0	143	30	113	24 ( 8 Mar)	49	22	17 Feb	30 Apr
153.	Siskin	5	41	14	3	0	63	6	57	12 ( 6 Mar)	42	19	25 Feb	12 May
154.	Yellowhammer	0	2	1	0	0	3	0	3	1 (20 Mar)	7	3	20 Mar	26 Apr
155.	Reed Bunting	1	39	10	1	1	52	2	50	14 ( 8 Mar)	44	20	25 Feb	17 Jun
	Other species
	Species	Feb	Mar	Apr	May	Jun	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Bumblebee sp.	0	3	2	3	0	8	3	5	3 (22 Mar)	7	3	22 Mar	13 May
	Species	Feb	Mar	Apr	May	Jun	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
	Totals	1497	17515	31024	10990	152	61178	3204	57974		100	45
	Observation hours	5:10	46:40	66:19	33:45	2:30	154:24

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Trektellen

Totals Berkheide (Katwijk) 2025