Select until 5 June

Totals Berkheide (Katwijk) 2016 - 2025

	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
1.	Dark-bellied Brent Goose	166	79	239	149	174	527	331	108	23	129	1925	193	1	527 (2021)
2.	Canada Goose	31	144	199	376	358	194	182	200	139	126	1949	195	2	376 (2019)
3.	Barnacle Goose	1234	2761	8796	4813	10434	5775	3836	4700	6674	5871	54894	5489	0	10434 (2020)
4.	Lesser Canada Goose	0	0	0	1	0	0	1	0	0	0	2	0.2	0	1 (2019)
5.	Bar-headed Goose	0	0	0	0	2	0	0	0	0	0	2	0.2	0	2 (2020)
6.	Greylag Goose	678	809	1013	1585	1069	465	1012	783	1227	658	9299	930	4	1585 (2019)
7.	Anser sp.	171	121	0	0	0	0	0	0	0	0	292	29	0	171 (2016)
8.	goose sp.	1211	26	225	1172	334	10791	138	241	4729	3363	22230	2223	0	10791 (2021)
9.	Domestic Goose	1	0	0	0	0	0	0	0	0	0	1	0.1	0	1 (2016)
10.	Pink-footed Goose	197	11	31	590	190	3442	6	0	149	7	4623	462	0	3442 (2021)
11.	Tundra Bean Goose	13	28	0	0	4	93	500	1	1	3	643	64	0	500 (2022)
12.	Bean Goose sp.	3	0	0	0	0	0	0	0	0	0	3	0.3	0	3 (2016)
13.	Eurasian White-fronted Goose	155	606	390	656	378	1541	1829	399	682	9	6645	665	0	1829 (2022)
14.	Lesser White-fronted Goose	0	0	0	0	0	0	0	0	2	0	2	0.2	0	2 (2024)
15.	Black Swan	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2022)
16.	Mute Swan	163	100	72	184	215	162	90	63	82	33	1164	116	11	215 (2020)
17.	Bewick's Swan	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2021)
18.	Whooper Swan	0	0	6	0	2	32	0	0	0	0	40	4	0	32 (2021)
19.	Egyptian Goose	138	128	91	213	339	219	310	201	416	317	2372	237	9	416 (2024)
20.	Shelduck	252	255	435	744	384	253	246	334	173	176	3252	325	12	744 (2019)
21.	Ruddy Shelduck	1	15	0	12	2	0	2	2	1	1	36	3.6	0	15 (2017)
22.	Garganey	0	5	4	0	7	6	5	0	1	0	28	2.8	0	7 (2020)
23.	Shoveler	120	274	175	243	520	320	500	65	232	460	2909	291	0	520 (2020)
24.	Gadwall	41	99	52	78	105	60	68	77	42	41	663	66	0	105 (2020)
25.	Wigeon	337	100	1272	539	230	490	398	17	93	44	3520	352	37	1272 (2018)
26.	American Wigeon	0	0	1	0	0	0	0	0	0	0	1	0.1	0	1 (2018)
27.	Mallard	14	58	46	60	81	17	23	45	22	8	374	37	0	81 (2020)
28.	Pintail	81	314	23	21	45	165	65	28	222	17	981	98	0	314 (2017)
29.	Teal	634	31	81	78	51	141	62	2	6	34	1120	112	0	634 (2016)
30.	duck sp.	54	71	38	0	19	4	6	5	17	0	214	21	0	71 (2017)
31.	Red-crested Pochard	18	7	24	11	0	5	14	14	7	11	111	11	7	24 (2018)
32.	Pochard	26	48	29	25	7	23	54	22	40	18	292	29	0	54 (2022)
33.	Ring-necked Duck	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2024)
34.	Tufted Duck	19	35	14	6	45	24	35	18	7	10	213	21	0	45 (2020)
35.	Scaup	9	0	1	0	0	30	0	0	0	0	40	4	0	30 (2021)
36.	Aythya sp.	58	0	0	0	0	0	0	0	0	0	58	5.8	0	58 (2016)
37.	King Eider	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2024)
38.	Eider	73	51	81	102	142	82	118	54	72	71	846	85	0	142 (2020)
39.	Velvet Scoter	3	5	5	0	2	2	0	0	15	0	32	3.2	0	15 (2024)
40.	Common Scoter	618	2210	1119	500	674	1720	534	346	1560	192	9473	947	87	2210 (2017)
41.	scoter sp.	2	9	0	0	0	0	0	0	0	0	11	1.1	0	9 (2017)
42.	Long-tailed Duck	0	0	0	0	0	1	0	0	1	0	2	0.2	0	1 (2021)
43.	Goldeneye	1	8	0	2	6	2	0	0	0	4	23	2.3	0	8 (2017)
44.	Smew	0	0	3	0	0	24	0	0	0	0	27	2.7	0	24 (2021)
45.	Goosander	3	8	28	21	14	17	3	9	26	15	144	14	0	28 (2018)
46.	Red-breasted Merganser	67	59	82	31	97	78	48	37	19	27	545	55	0	97 (2020)
47.	Alpine Swift	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2021)
48.	Swift	1934	11043	6648	9961	16739	3970	4900	16824	3283	3494	78796	7880	792	16824 (2023)
49.	Cuckoo	23	11	14	9	9	5	3	20	12	7	113	11	17	23 (2016)
50.	Stock Dove	137	152	185	215	246	96	387	128	166	73	1785	179	75	387 (2022)
	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
51.	Woodpigeon	3163	1668	5163	1739	2989	2260	5579	4114	2131	4654	33460	3346	253	5579 (2022)
52.	Turtle Dove	3	1	2	4	3	1	3	2	3	1	23	2.3	0	4 (2019)
53.	Collared Dove	100	118	161	121	144	69	104	139	98	32	1086	109	15	161 (2018)
54.	Crane	0	0	17	0	0	0	3	0	72	0	92	9.2	0	72 (2024)
55.	Great Crested Grebe	148	20	69	150	50	135	355	10	14	9	960	96	243	355 (2022)
56.	Greater Flamingo	0	0	0	0	0	0	0	2	0	0	2	0.2	0	2 (2023)
57.	Oystercatcher	420	327	735	318	429	433	413	665	391	409	4540	454	6	735 (2018)
58.	Avocet	18	10	27	1	86	14	146	2	25	49	378	38	0	146 (2022)
59.	Grey Plover	29	139	14	16	15	175	12	128	58	41	627	63	0	175 (2021)
60.	Golden Plover	10	87	250	21	31	57	55	21	6	20	558	56	0	250 (2018)
61.	Dotterel	1	5	1	22	2	0	5	0	0	1	37	3.7	0	22 (2019)
62.	Ringed Plover	20	44	103	200	59	18	20	108	101	133	806	81	0	200 (2019)
63.	Charadrius h. tundrae	0	0	0	0	0	0	0	12	0	0	12	1.2	0	12 (2023)
64.	Little Ringed Plover	15	18	27	15	22	18	37	33	8	30	223	22	12	37 (2022)
65.	Lapwing	241	110	1154	90	94	256	182	151	111	97	2486	249	45	1154 (2018)
66.	Whimbrel	159	284	403	397	1486	633	251	348	138	529	4628	463	2	1486 (2020)
67.	Curlew	110	86	105	276	168	75	119	104	22	60	1125	113	1	276 (2019)
68.	Bar-tailed Godwit	41	62	22	13	36	121	83	22	9	30	439	44	0	121 (2021)
69.	Black-tailed Godwit	12	24	41	21	20	1	66	14	30	1	230	23	0	66 (2022)
70.	Icelandic Black-tailed Godwit	0	0	1	0	0	1	0	0	0	0	2	0.2	0	1 (2018)
71.	Jack Snipe	1	0	0	1	0	0	1	0	0	0	3	0.3	0	1 (2016)
72.	Woodcock	3	2	0	1	1	2	1	0	0	0	10	1	0	3 (2016)
73.	Snipe	19	39	58	54	60	32	68	7	42	112	491	49	0	112 (2025)
74.	Common Sandpiper	0	0	1	3	0	2	0	1	0	0	7	0.7	0	3 (2019)
75.	Green Sandpiper	14	91	53	119	210	83	144	84	17	218	1033	103	1	218 (2025)
76.	Wood Sandpiper	3	4	15	7	13	3	13	4	1	9	72	7.2	0	15 (2018)
77.	Redshank	28	165	58	107	199	37	198	94	61	126	1073	107	0	199 (2020)
78.	Spotted Redshank	1	7	6	8	3	1	11	1	2	16	56	5.6	0	16 (2025)
79.	Greenshank	36	151	29	49	66	35	147	65	23	31	632	63	0	151 (2017)
80.	Turnstone	2	3	1	0	1	0	0	4	0	0	11	1.1	0	4 (2023)
81.	Knot	29	28	19	43	78	14	61	1	1	0	274	27	0	78 (2020)
82.	Ruff	12	67	68	0	58	1	61	23	60	27	377	38	0	68 (2018)
83.	wader sp.	33	82	50	18	137	192	11	27	54	60	664	66	0	192 (2021)
84.	small wader	0	0	0	0	0	0	0	0	2	0	2	0.2	0	2 (2024)
85.	large wader	0	0	0	0	0	0	0	0	6	0	6	0.6	0	6 (2024)
86.	Temminck's Stint	0	6	0	0	0	0	0	0	0	0	6	0.6	0	6 (2017)
87.	Sanderling	53	82	0	15	67	48	0	0	1	0	266	27	31	82 (2017)
88.	Dunlin	317	26	24	131	33	137	704	9	10	10	1401	140	0	704 (2022)
89.	Purple Sandpiper	3	0	0	0	0	0	0	0	0	0	3	0.3	0	3 (2016)
90.	Little Stint	0	6	0	0	0	0	0	0	0	0	6	0.6	0	6 (2017)
91.	Little / Temminck's Stint	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2023)
92.	Calidris sp.	0	53	0	3	13	28	3	3	13	37	153	15	0	53 (2017)
93.	Little Tern	50	33	21	18	78	14	9	8	5	5	241	24	0	78 (2020)
94.	Gull-billed Tern	0	2	2	0	2	1	0	0	3	1	11	1.1	0	3 (2024)
95.	Caspian Tern	0	0	0	0	0	1	1	6	3	4	15	1.5	0	6 (2023)
96.	Black Tern	11	42	0	24	237	8	12	10	14	9	367	37	0	237 (2020)
97.	Arctic Tern	11	0	4	30	32	45	0	0	0	0	122	12	0	45 (2021)
98.	Common/Arctic Tern	13	895	0	112	403	156	71	297	230	0	2177	218	10	895 (2017)
99.	Common Tern	558	344	349	585	7741	985	291	543	506	310	12212	1221	49	7741 (2020)
100.	sterna sp.	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2024)
	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
101.	Sandwich Tern	200	705	321	667	994	404	134	142	105	214	3886	389	45	994 (2020)
102.	Little Gull	317	51	130	924	1911	5638	469	781	103	159	10483	1048	89	5638 (2021)
103.	Kittiwake	2	3	2	0	0	4	1	0	0	0	12	1.2	0	4 (2021)
104.	Black-headed Gull	7439	3659	4060	2184	3657	2563	3578	4882	614	1484	34120	3412	51	7439 (2016)
105.	Mediterranean Gull	5	13	58	23	150	24	12	66	18	70	439	44	0	150 (2020)
106.	Common Gull	1860	1380	520	317	1343	403	700	850	1075	3065	11513	1151	77	3065 (2025)
107.	Caspian Gull	0	0	0	0	0	0	0	2	1	0	3	0.3	0	2 (2023)
108.	Herring Gull	1527	2013	813	876	2121	779	256	1225	178	1193	10981	1098	672	2121 (2020)
109.	Yellow-legged Gull	0	1	0	0	0	0	1	0	0	0	2	0.2	1	1 (2017)
110.	Great Black-backed Gull	109	98	24	42	107	57	10	10	8	13	478	48	35	109 (2016)
111.	Glaucous Gull	0	2	1	1	0	0	0	1	0	0	5	0.5	0	2 (2017)
112.	Lesser Black-backed Gull	3786	2192	3306	2902	8465	1633	2326	5057	1803	4605	36075	3608	200	8465 (2020)
113.	Iceland Gull	0	2	0	1	1	0	2	0	0	0	6	0.6	0	2 (2017)
114.	Arctic Skua	0	0	0	3	1	2	1	0	0	0	7	0.7	0	3 (2019)
115.	Great Skua	0	1	0	0	0	0	0	0	0	0	1	0.1	0	1 (2017)
116.	Razorbill	0	0	1	0	0	0	0	0	0	0	1	0.1	0	1 (2018)
117.	Razorbill/Guillemot	19	26	196	316	21	554	95	0	82	0	1309	131	1	554 (2021)
118.	Guillemot	0	1	0	0	0	5	0	0	0	0	6	0.6	1	5 (2021)
119.	Red-throated Diver	475	224	135	142	110	1544	119	34	214	11	3008	301	19	1544 (2021)
120.	Black-throated Diver	2	0	2	0	0	1	1	0	0	0	6	0.6	0	2 (2016)
121.	Great Northern Diver	1	0	0	0	0	1	1	0	0	0	3	0.3	0	1 (2016)
122.	diver sp.	2	1	2	0	2	2	0	0	3	1	13	1.3	0	3 (2024)
123.	Fulmar	1	0	0	0	1	1	0	0	0	1	4	0.4	0	1 (2016)
124.	Black Stork	4	3	0	0	0	0	0	0	0	0	7	0.7	0	4 (2016)
125.	White Stork	5	12	5	13	5	0	4	5	6	12	67	6.7	1	13 (2019)
126.	Gannet	110	41	130	23	51	405	20	7	28	52	867	87	23	405 (2021)
127.	Cormorant	2102	4033	3938	7471	6846	2876	4801	2624	2256	2281	39228	3923	276	7471 (2019)
128.	Cormorant (p. c. carbo)	0	0	1	0	0	0	0	0	0	0	1	0.1	0	1 (2018)
129.	Spoonbill	105	346	461	378	399	418	383	275	230	455	3450	345	1	461 (2018)
130.	Bittern	0	0	0	0	2	0	0	0	3	2	7	0.7	1	3 (2024)
131.	Night Heron	0	2	0	0	0	2	0	0	0	0	4	0.4	0	2 (2017)
132.	Little Egret	0	3	1	4	2	2	2	3	4	1	22	2.2	0	4 (2019)
133.	Egretta sp.	0	0	0	1	0	0	0	0	0	0	1	0.1	0	1 (2019)
134.	Cattle Egret	0	0	0	1	0	1	2	1	1	0	6	0.6	0	2 (2022)
135.	Great White Egret	13	6	32	46	51	35	81	36	49	54	403	40	2	81 (2022)
136.	heron sp.	1	1	0	0	1	0	0	0	0	0	3	0.3	0	1 (2016)
137.	Grey Heron	168	249	412	369	458	155	369	243	290	440	3153	315	13	458 (2020)
138.	Purple Heron	6	6	18	12	13	6	19	13	13	5	111	11	0	19 (2022)
139.	Osprey	10	2	7	7	8	6	0	8	2	3	53	5.3	0	10 (2016)
140.	Honey Buzzard	2	5	4	0	2	1	2	0	5	2	23	2.3	2	5 (2017)
141.	Booted Eagle	0	0	0	0	2	0	0	0	0	0	2	0.2	0	2 (2020)
142.	Sparrowhawk	41	30	33	59	40	25	20	36	17	31	332	33	7	59 (2019)
143.	Goshawk	4	10	4	4	3	3	2	4	1	2	37	3.7	10	10 (2017)
144.	Marsh Harrier	43	101	102	93	133	81	84	63	81	88	869	87	4	133 (2020)
145.	Hen Harrier	5	2	2	7	11	5	3	4	7	8	54	5.4	1	11 (2020)
146.	Pallid Harrier	1	1	1	0	2	0	1	1	2	0	9	0.9	0	2 (2020)
147.	Montagu's Harrier	1	0	0	1	0	0	0	1	0	1	4	0.4	0	1 (2016)
148.	Montagu's/Pallid Harrier	0	1	0	0	0	1	0	0	0	0	2	0.2	0	1 (2017)
149.	Red Kite	1	1	3	0	1	2	2	2	2	1	15	1.5	0	3 (2018)
150.	Black Kite	2	1	1	4	3	3	2	3	0	1	20	2	0	4 (2019)
	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
151.	White-tailed Eagle	1	0	2	1	3	0	0	0	0	0	7	0.7	0	3 (2020)
152.	Rough-legged Buzzard	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2022)
153.	Common Buzzard	39	7	11	20	22	5	5	21	16	6	152	15	51	39 (2016)
154.	Short-eared Owl	3	0	2	0	3	1	1	0	0	2	12	1.2	0	3 (2016)
155.	Hoopoe	1	0	0	1	0	1	0	0	0	0	3	0.3	0	1 (2016)
156.	Kingfisher	1	0	0	0	0	0	0	0	0	0	1	0.1	0	1 (2016)
157.	European Bee-eater	2	3	3	1	0	1	4	2	4	21	41	4.1	0	21 (2025)
158.	Lesser Spotted Woodpecker	0	2	0	2	1	0	0	0	0	0	5	0.5	0	2 (2017)
159.	Great Spotted Woodpecker	35	133	57	92	53	43	31	32	32	16	524	52	46	133 (2017)
160.	Green Woodpecker	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2020)
161.	Kestrel	38	35	23	41	47	22	35	39	18	89	387	39	26	89 (2025)
162.	falcon sp.	0	0	1	0	0	0	0	1	0	0	2	0.2	0	1 (2018)
163.	Red-footed Falcon	7	3	0	0	1	0	0	2	0	0	13	1.3	1	7 (2016)
164.	Merlin	5	4	7	12	19	9	8	7	6	14	91	9.1	0	19 (2020)
165.	Hobby	9	5	8	13	9	4	6	7	10	6	77	7.7	1	13 (2019)
166.	Saker Falcon	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2024)
167.	Peregrine	7	17	15	11	8	7	5	4	7	3	84	8.4	3	17 (2017)
168.	Rose-ringed Parakeet	0	0	0	5	4	0	0	4	1	0	14	1.4	0	5 (2019)
169.	Golden Oriole	5	6	13	4	11	15	5	21	13	7	100	10	0	21 (2023)
170.	Great Grey Shrike	1	0	0	1	0	0	0	0	0	0	2	0.2	0	1 (2016)
171.	Jay	31	13	4	203	15	20	59	5	2	2	354	35	8	203 (2019)
172.	Magpie	27	6	23	43	111	39	44	23	59	77	452	45	31	111 (2020)
173.	Jackdaw	1000	779	694	1947	601	1341	554	415	548	472	8351	835	15	1947 (2019)
174.	Rook	3	2	17	7	4	15	7	8	4	11	78	7.8	0	17 (2018)
175.	Carrion Crow	77	99	236	121	152	95	134	189	168	277	1548	155	91	277 (2025)
176.	Hooded Crow	0	0	2	0	0	1	2	0	1	0	6	0.6	0	2 (2018)
177.	Raven	2	4	1	3	2	0	3	5	2	0	22	2.2	0	5 (2023)
178.	Waxwing	2	0	0	0	0	0	0	0	5	0	7	0.7	0	5 (2024)
179.	Coal Tit	1	13	1	3	4	24	0	0	0	0	46	4.6	2	24 (2021)
180.	Crested Tit	0	0	0	0	0	0	0	0	3	0	3	0.3	0	3 (2024)
181.	Blue Tit	31	143	11	5542	52	171	22	10	7	11	6000	600	2	5542 (2019)
182.	Great Tit	49	85	51	104	37	90	11	25	7	4	463	46	7	104 (2019)
183.	Penduline Tit	0	0	0	0	0	0	0	0	0	1	1	0.1	0	1 (2025)
184.	Bearded Tit	0	0	0	0	0	5	0	0	0	0	5	0.5	0	5 (2021)
185.	Wood Lark	54	45	74	119	12	88	93	6	15	9	515	52	74	119 (2019)
186.	Skylark	291	144	391	1754	81	849	1021	11	47	28	4617	462	1	1754 (2019)
187.	Shore Lark	0	0	0	0	2	0	0	0	0	0	2	0.2	0	2 (2020)
188.	Sand Martin	332	406	146	918	935	535	323	505	233	938	5271	527	4	938 (2025)
189.	Swallow	3764	3490	3610	2903	2818	3882	1373	1907	1707	1745	27199	2720	141	3882 (2021)
190.	House Martin	498	1022	573	569	372	394	245	408	409	647	5137	514	228	1022 (2017)
191.	Red-rumped Swallow	1	0	0	0	1	0	0	1	0	1	4	0.4	0	1 (2016)
192.	swallow sp.	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2023)
193.	Long-tailed Tit	20	12	12	12	1	0	0	0	0	0	57	5.7	0	20 (2016)
194.	Wood Warbler	0	1	0	1	0	0	0	1	0	0	3	0.3	0	1 (2017)
195.	Willow Warbler	1	2	1	4	8	2	3	0	2	3	26	2.6	9	8 (2020)
196.	Chiffchaff	21	16	32	13	24	11	11	9	13	21	171	17	14	32 (2018)
197.	Chiffchaff/Willow Warbler	0	1	5	4	17	11	18	2	4	18	80	8	0	18 (2022)
198.	Phylloscopus sp.	0	0	0	0	1	0	1	0	0	0	2	0.2	0	1 (2020)
199.	Icterine Warbler	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2023)
200.	Blackcap	3	0	0	6	7	6	1	1	0	0	24	2.4	2	7 (2020)
	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
201.	Garden Warbler	0	0	1	0	0	0	0	1	0	0	2	0.2	0	1 (2018)
202.	Lesser Whitethroat	0	0	0	1	1	1	0	2	1	2	8	0.8	1	2 (2023)
203.	Whitethroat	0	0	0	0	1	0	0	0	0	1	2	0.2	0	1 (2020)
204.	Firecrest	1	0	0	6	1	5	0	1	0	0	14	1.4	0	6 (2019)
205.	Goldcrest	77	9	2	53	3	11	0	0	0	0	155	16	11	77 (2016)
206.	Nuthatch	0	1	0	3	1	1	0	0	0	0	6	0.6	0	3 (2019)
207.	Short-toed Tree Creeper	0	0	0	0	0	0	2	0	0	0	2	0.2	0	2 (2022)
208.	Crested Myna	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2020)
209.	Rose-coloured Starling	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2021)
210.	Starling	80364	162790	5744	78716	91072	147183	15202	36439	7706	1714	626930	62693	1489	162790 (2017)
211.	Purple Starling	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2023)
212.	Song Thrush	704	279	732	2790	615	513	1915	107	34	7529	15218	1522	24	7529 (2025)
213.	Mistle Thrush	62	80	158	131	36	87	140	22	66	143	925	93	22	158 (2018)
214.	Redwing	1274	45	797	5269	306	34185	1054	7	538	516	43991	4399	3	34185 (2021)
215.	Blackbird	67	13	17	42	8	60	59	3	4	3	276	28	19	67 (2016)
216.	Fieldfare	5900	21	31	22901	123	317	311	5	10	3	29622	2962	25	22901 (2019)
217.	Ring Ouzel	16	22	145	296	262	98	211	92	37	104	1283	128	44	296 (2019)
218.	thrush sp.	5	5	0	0	0	0	0	0	14	0	24	2.4	0	14 (2024)
219.	Spotted Flycatcher	58	16	56	14	39	7	9	10	76	40	325	33	17	76 (2024)
220.	Pied Flycatcher	0	0	0	1	0	0	0	1	2	0	4	0.4	0	2 (2024)
221.	Black Redstart	0	0	1	2	1	1	0	0	0	0	5	0.5	0	2 (2019)
222.	Redstart	0	0	0	1	0	0	0	0	1	0	2	0.2	0	1 (2019)
223.	Rock Thrush	1	0	0	0	0	0	0	0	0	0	1	0.1	0	1 (2016)
224.	Whinchat	3	1	0	2	0	1	0	1	3	1	12	1.2	0	3 (2016)
225.	Stonechat	0	1	0	0	0	1	1	1	0	0	4	0.4	3	1 (2017)
226.	Wheatear	15	3	15	37	40	11	5	10	8	10	154	15	7	40 (2020)
227.	Tree Sparrow	28	21	14	55	5	20	1	0	0	0	144	14	5	55 (2019)
228.	House Sparrow	23	28	22	43	57	10	7	1	0	1	192	19	12	57 (2020)
229.	Dunnock	38	79	44	106	27	51	33	12	24	9	423	42	33	106 (2019)
230.	Blue-headed Wagtail	152	39	288	336	419	20	32	196	11	113	1606	161	7	419 (2020)
231.	Yellow Wagtail (flavissima)	8	9	7	12	35	12	5	5	3	9	105	11	2	35 (2020)
232.	Grey-headed Wagtail	57	28	80	33	20	3	4	23	89	32	369	37	0	89 (2024)
233.	Yellow wagtail sp.	224	751	598	824	1304	735	635	372	432	679	6554	655	6	1304 (2020)
234.	Citrine Wagtail	0	1	1	1	0	0	0	0	0	0	3	0.3	0	1 (2017)
235.	Grey Wagtail	12	37	14	103	34	38	17	5	19	16	295	30	0	103 (2019)
236.	White Wagtail	122	810	594	275	222	124	289	92	87	317	2932	293	28	810 (2017)
237.	alba wagtail sp.	92	339	372	243	614	107	383	193	353	242	2938	294	5	614 (2020)
238.	Motacilla (wagtail) sp.	0	0	0	0	0	0	0	0	0	2	2	0.2	0	2 (2025)
239.	Pied Wagtail	15	13	19	12	5	7	9	4	13	16	113	11	0	19 (2018)
240.	Richard's Pipit	0	0	0	1	2	1	2	0	0	0	6	0.6	0	2 (2020)
241.	Tawny Pipit	0	0	0	1	1	0	0	0	0	0	2	0.2	0	1 (2019)
242.	Meadow Pipit	2114	7403	6712	27484	14747	11625	4752	9118	1990	5648	91593	9159	81	27484 (2019)
243.	Tree Pipit	67	81	160	277	446	128	266	173	150	187	1935	194	5	446 (2020)
244.	Red-throated Pipit	0	1	0	0	0	0	1	0	0	0	2	0.2	0	1 (2017)
245.	Water Pipit	3	0	0	2	0	1	6	1	2	0	15	1.5	0	6 (2022)
246.	Rock Pipit	18	16	5	3	3	2	16	2	5	5	75	7.5	0	18 (2016)
247.	Rock Pipit/Water Pipit	4	1	7	14	8	4	11	6	3	5	63	6.3	0	14 (2019)
248.	pipit sp.	2	1	0	0	0	0	0	0	0	1	4	0.4	0	2 (2016)
249.	Chaffinch	4901	18338	1116	52507	12075	24804	6560	1404	1411	1819	124935	12494	1056	52507 (2019)
250.	Brambling	135	432	79	434	289	3542	590	382	173	27	6083	608	204	3542 (2021)
	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
251.	Hawfinch	36	28	80	34	93	25	52	53	151	151	703	70	8	151 (2024)
252.	Bullfinch	0	3	7	7	0	1	1	3	1	2	25	2.5	0	7 (2018)
253.	Common Rosefinch	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2021)
254.	Greenfinch	192	202	339	320	214	98	114	52	49	40	1620	162	202	339 (2018)
255.	Linnet	355	1004	690	779	2239	643	461	481	369	387	7408	741	220	2239 (2020)
256.	Mealy Redpoll	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2024)
257.	Lesser Redpoll	6	5	4	1	0	2	0	4	0	0	22	2.2	0	6 (2016)
258.	redpoll sp.	11	64	33	42	10	100	13	78	187	10	548	55	1	187 (2024)
259.	Crossbill	139	705	27	304	248	284	89	255	4	0	2055	206	39	705 (2017)
260.	Goldfinch	104	190	161	285	266	126	156	192	138	143	1761	176	109	285 (2019)
261.	Serin	5	3	3	2	2	5	0	1	0	0	21	2.1	0	5 (2016)
262.	Siskin	1265	771	258	10918	224	5157	321	68	425	63	19470	1947	125	10918 (2019)
263.	Lapland Bunting	2	2	2	3	10	1	1	0	0	0	21	2.1	0	10 (2020)
264.	Snow Bunting	2	1	16	1	0	0	0	0	0	0	20	2	0	16 (2018)
265.	Yellowhammer	0	0	1	2	1	2	2	0	1	3	12	1.2	0	3 (2025)
266.	Ortolan Bunting	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2020)
267.	Little Bunting	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2022)
268.	Reed Bunting	123	142	240	274	150	155	313	25	143	51	1616	162	10	313 (2022)
269.	bunting sp.	0	0	0	2	0	0	0	0	0	0	2	0.2	0	2 (2019)
270.	passerine sp.	0	0	0	0	2	0	1	0	0	0	3	0.3	0	2 (2020)
	Other species
1.	Harbour Porpoise	6	0	0	2	2	1	0	0	5	0	16	1.6	0	6 (2016)
2.	Grey seal	2	0	0	0	0	0	0	0	0	0	2	0.2	0	2 (2016)
3.	Common Seal	1	0	0	0	0	0	0	0	0	0	1	0.1	0	1 (2016)
	Other species
1.	Small Tortoiseshell	0	1	0	0	0	0	1	0	0	0	2	0.2	0	1 (2017)
2.	Brimstone	0	3	1	4	4	0	0	1	1	0	14	1.4	0	4 (2019)
3.	European Peacock	0	1	2	0	0	0	0	1	1	0	5	0.5	0	2 (2018)
4.	Large White	2	0	0	6	1	0	0	0	0	0	9	0.9	0	6 (2019)
5.	Green-veined White	0	0	0	1	0	0	0	0	0	0	1	0.1	0	1 (2019)
6.	Small White	14	1	0	4	0	0	0	0	0	0	19	1.9	0	14 (2016)
7.	white sp. (butterfly)	22	0	0	3	1	0	0	0	0	0	26	2.6	0	22 (2016)
8.	Comma	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2022)
9.	Red Admiral	6	37	0	4	6	1	1	2	0	0	57	5.7	0	37 (2017)
10.	Painted Lady	0	0	0	45	0	0	0	0	0	0	45	4.5	10	45 (2019)
11.	Small Heath	0	0	0	2	0	0	0	0	0	0	2	0.2	0	2 (2019)
	Other species
1.	Bumblebee sp.	9	59	14	10	46	5	5	6	18	8	180	18	0	59 (2017)
	Species	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	Totals	Average	Present	Year Maximum
	Totals	137968	241474	70936	264586	206689	292523	76537	101772	49719	61026	1503230	150323	7844
	Observation hours	194:17	272:45	304:23	312:34	291:43	220:32	208:10	217:32	171:33	151:54	2,345:23	234:32

Trektellen

Totals Berkheide (Katwijk) 2016 - 2025