Select until 13 January

Totals Berkheide (Katwijk) 2017 - 2026

	Species	2017	2018	2019	2020	2021	2022	2023	2024	2025	2026	Totals	Average	Present	Year Maximum
1.	Dark-bellied Brent Goose	79	239	149	174	527	331	108	23	129	0	1759	176	1	527 (2021)
2.	Canada Goose	144	199	376	358	194	182	200	139	159	0	1951	195	2	376 (2019)
3.	Barnacle Goose	2761	8796	4813	10434	5775	3836	4700	6674	5871	3	53663	5366	0	10434 (2020)
4.	Lesser Canada Goose	0	0	1	0	0	1	0	0	0	0	2	0.2	0	1 (2019)
5.	Bar-headed Goose	0	0	0	2	0	0	0	0	0	0	2	0.2	0	2 (2020)
6.	Greylag Goose	809	1013	1585	1069	465	1012	783	1227	850	0	8813	881	4	1585 (2019)
7.	Anser sp.	121	0	0	0	0	0	0	0	0	0	121	12	0	121 (2017)
8.	goose sp.	26	225	1172	334	10791	138	241	4729	3438	0	21094	2109	0	10791 (2021)
9.	Pink-footed Goose	11	31	590	190	3442	6	0	149	33	0	4452	445	0	3442 (2021)
10.	Tundra Bean Goose	28	0	0	4	93	500	1	1	3	0	630	63	0	500 (2022)
11.	Eurasian White-fronted Goose	606	390	656	378	1541	1829	399	682	9	0	6490	649	0	1829 (2022)
12.	Lesser White-fronted Goose	0	0	0	0	0	0	0	2	0	0	2	0.2	0	2 (2024)
13.	Black Swan	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2022)
14.	Mute Swan	100	72	184	215	162	90	63	82	37	0	1005	101	11	215 (2020)
15.	Bewick's Swan	0	0	0	0	1	0	0	0	0	3	4	0.4	0	3 (2026)
16.	Whooper Swan	0	6	0	2	32	0	0	0	0	3	43	4.3	0	32 (2021)
17.	Egyptian Goose	128	91	213	339	219	310	201	416	354	12	2283	228	9	416 (2024)
18.	Shelduck	255	435	744	384	253	246	334	173	229	0	3053	305	12	744 (2019)
19.	Ruddy Shelduck	15	0	12	2	0	2	2	1	1	0	35	3.5	0	15 (2017)
20.	Garganey	5	4	0	7	6	5	0	1	0	0	28	2.8	0	7 (2020)
21.	Shoveler	274	175	243	520	320	500	65	232	460	0	2789	279	0	520 (2020)
22.	Gadwall	99	52	78	105	60	68	77	42	51	4	636	64	0	105 (2020)
23.	Wigeon	100	1272	539	230	490	398	17	93	47	7	3193	319	30	1272 (2018)
24.	American Wigeon	0	1	0	0	0	0	0	0	0	0	1	0.1	0	1 (2018)
25.	Mallard	58	46	60	81	17	23	45	22	8	0	360	36	0	81 (2020)
26.	Pintail	314	23	21	45	165	65	28	222	17	0	900	90	0	314 (2017)
27.	Teal	31	81	78	51	141	62	2	6	35	0	487	49	0	141 (2021)
28.	duck sp.	71	38	0	19	4	6	5	17	0	0	160	16	0	71 (2017)
29.	Red-crested Pochard	7	24	11	0	5	14	14	7	11	0	93	9.3	4	24 (2018)
30.	Pochard	48	29	25	7	23	54	22	40	18	0	266	27	0	54 (2022)
31.	Ring-necked Duck	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2024)
32.	Tufted Duck	35	14	6	45	24	35	18	7	12	0	196	20	0	45 (2020)
33.	Scaup	0	1	0	0	30	0	0	0	0	0	31	3.1	0	30 (2021)
34.	King Eider	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2024)
35.	Eider	51	81	102	142	82	118	54	72	71	0	773	77	0	142 (2020)
36.	Velvet Scoter	5	5	0	2	2	0	0	15	0	0	29	2.9	0	15 (2024)
37.	Common Scoter	2210	1119	500	674	1720	534	346	1560	194	2	8859	886	87	2210 (2017)
38.	scoter sp.	9	0	0	0	0	0	0	0	0	0	9	0.9	0	9 (2017)
39.	Long-tailed Duck	0	0	0	0	1	0	0	1	0	0	2	0.2	0	1 (2021)
40.	Goldeneye	8	0	2	6	2	0	0	0	4	0	22	2.2	0	8 (2017)
41.	Smew	0	3	0	0	24	0	0	0	0	0	27	2.7	0	24 (2021)
42.	Goosander	8	28	21	14	17	3	9	26	15	8	149	15	0	28 (2018)
43.	Red-breasted Merganser	59	82	31	97	78	48	37	19	29	0	480	48	0	97 (2020)
44.	Alpine Swift	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2021)
45.	Swift	11043	6648	9961	16739	3970	4900	16824	3283	4032	0	77400	7740	772	16824 (2023)
46.	Cuckoo	11	14	9	9	5	3	20	12	9	0	92	9.2	15	20 (2023)
47.	Stock Dove	152	185	215	246	96	387	128	166	74	8	1657	166	74	387 (2022)
48.	Woodpigeon	1668	5163	1739	2989	2260	5579	4114	2131	5574	0	31217	3122	53	5579 (2022)
49.	Turtle Dove	1	2	4	3	1	3	2	3	1	0	20	2	0	4 (2019)
50.	Collared Dove	118	161	121	144	69	104	139	98	33	0	987	99	14	161 (2018)
	Species	2017	2018	2019	2020	2021	2022	2023	2024	2025	2026	Totals	Average	Present	Year Maximum
51.	Crane	0	17	0	0	0	3	0	72	0	0	92	9.2	0	72 (2024)
52.	Great Crested Grebe	20	69	150	50	135	355	10	14	9	4	816	82	199	355 (2022)
53.	Greater Flamingo	0	0	0	0	0	0	2	0	0	0	2	0.2	0	2 (2023)
54.	Oystercatcher	327	735	318	429	433	413	665	391	417	0	4128	413	3	735 (2018)
55.	Avocet	10	27	1	86	14	146	2	25	49	0	360	36	0	146 (2022)
56.	Grey Plover	139	14	16	15	175	12	128	58	41	0	598	60	0	175 (2021)
57.	Golden Plover	87	250	21	31	57	55	21	6	23	2	553	55	0	250 (2018)
58.	Dotterel	5	1	22	2	0	5	0	0	1	0	36	3.6	0	22 (2019)
59.	Ringed Plover	44	103	200	59	18	20	108	101	134	2	789	79	0	200 (2019)
60.	Charadrius h. tundrae	0	0	0	0	0	0	12	0	0	0	12	1.2	0	12 (2023)
61.	Little Ringed Plover	18	27	15	22	18	37	33	8	30	0	208	21	12	37 (2022)
62.	Lapwing	110	1154	90	94	256	182	151	111	117	25	2290	229	39	1154 (2018)
63.	Whimbrel	284	403	397	1486	633	251	348	138	533	0	4473	447	2	1486 (2020)
64.	Curlew	86	105	276	168	75	119	104	22	96	0	1051	105	1	276 (2019)
65.	Bar-tailed Godwit	62	22	13	36	121	83	22	9	30	0	398	40	0	121 (2021)
66.	Black-tailed Godwit	24	41	21	20	1	66	14	30	1	0	218	22	0	66 (2022)
67.	Icelandic Black-tailed Godwit	0	1	0	0	1	0	0	0	0	0	2	0.2	0	1 (2018)
68.	Jack Snipe	0	0	1	0	0	1	0	0	0	0	2	0.2	0	1 (2019)
69.	Woodcock	2	0	1	1	2	1	0	0	0	0	7	0.7	0	2 (2017)
70.	Snipe	39	58	54	60	32	68	7	42	169	1	530	53	0	169 (2025)
71.	Common Sandpiper	0	1	3	0	2	0	1	0	0	0	7	0.7	0	3 (2019)
72.	Green Sandpiper	91	53	119	210	83	144	84	17	244	0	1045	105	1	244 (2025)
73.	Wood Sandpiper	4	15	7	13	3	13	4	1	11	0	71	7.1	0	15 (2018)
74.	Redshank	165	58	107	199	37	198	94	61	127	0	1046	105	0	199 (2020)
75.	Spotted Redshank	7	6	8	3	1	11	1	2	17	0	56	5.6	0	17 (2025)
76.	Greenshank	151	29	49	66	35	147	65	23	32	0	597	60	0	151 (2017)
77.	Turnstone	3	1	0	1	0	0	4	0	0	0	9	0.9	0	4 (2023)
78.	Knot	28	19	43	78	14	61	1	1	0	0	245	25	0	78 (2020)
79.	Ruff	67	68	0	58	1	61	23	60	27	0	365	37	0	68 (2018)
80.	wader sp.	82	50	18	137	192	11	27	54	62	0	633	63	0	192 (2021)
81.	small wader	0	0	0	0	0	0	0	2	0	0	2	0.2	0	2 (2024)
82.	large wader	0	0	0	0	0	0	0	6	0	0	6	0.6	0	6 (2024)
83.	Temminck's Stint	6	0	0	0	0	0	0	0	0	0	6	0.6	0	6 (2017)
84.	Sanderling	82	0	15	67	48	0	0	1	0	0	213	21	0	82 (2017)
85.	Dunlin	26	24	131	33	137	704	9	10	13	0	1087	109	0	704 (2022)
86.	Little Stint	6	0	0	0	0	0	0	0	0	0	6	0.6	0	6 (2017)
87.	Little / Temminck's Stint	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2023)
88.	Calidris sp.	53	0	3	13	28	3	3	13	37	0	153	15	0	53 (2017)
89.	Little Tern	33	21	18	78	14	9	8	5	5	0	191	19	0	78 (2020)
90.	Gull-billed Tern	2	2	0	2	1	0	0	3	1	0	11	1.1	0	3 (2024)
91.	Caspian Tern	0	0	0	0	1	1	6	3	6	0	17	1.7	0	6 (2023)
92.	Black Tern	42	0	24	237	8	12	10	14	9	0	356	36	0	237 (2020)
93.	Arctic Tern	0	4	30	32	45	0	0	0	0	0	111	11	0	45 (2021)
94.	Common/Arctic Tern	895	0	112	403	156	71	297	230	142	0	2306	231	0	895 (2017)
95.	Common Tern	344	349	585	7741	985	291	543	506	312	0	11656	1166	38	7741 (2020)
96.	sterna sp.	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2024)
97.	Sandwich Tern	705	321	667	994	404	134	142	105	373	0	3845	385	45	994 (2020)
98.	Little Gull	51	130	924	1911	5638	469	781	103	159	0	10166	1017	85	5638 (2021)
99.	Kittiwake	3	2	0	0	4	1	0	0	0	1	11	1.1	0	4 (2021)
100.	Black-headed Gull	3659	4060	2184	3657	2563	3578	4882	614	1779	38	27014	2701	33	4882 (2023)
	Species	2017	2018	2019	2020	2021	2022	2023	2024	2025	2026	Totals	Average	Present	Year Maximum
101.	Mediterranean Gull	13	58	23	150	24	12	66	18	77	0	441	44	0	150 (2020)
102.	Common Gull	1380	520	317	1343	403	700	850	1075	3069	44	9701	970	51	3069 (2025)
103.	Caspian Gull	0	0	0	0	0	0	2	1	0	0	3	0.3	0	2 (2023)
104.	Herring Gull	2013	813	876	2121	779	256	1225	178	1210	6	9477	948	368	2121 (2020)
105.	Yellow-legged Gull	1	0	0	0	0	1	0	0	0	0	2	0.2	1	1 (2017)
106.	Great Black-backed Gull	98	24	42	107	57	10	10	8	14	0	370	37	3	107 (2020)
107.	Glaucous Gull	2	1	1	0	0	0	1	0	0	0	5	0.5	0	2 (2017)
108.	Lesser Black-backed Gull	2192	3306	2902	8465	1633	2326	5057	1803	4866	0	32550	3255	189	8465 (2020)
109.	Iceland Gull	2	0	1	1	0	2	0	0	0	0	6	0.6	0	2 (2017)
110.	Arctic Skua	0	0	3	1	2	1	0	0	3	0	10	1	0	3 (2019)
111.	Great Skua	1	0	0	0	0	0	0	0	0	0	1	0.1	0	1 (2017)
112.	Razorbill	0	1	0	0	0	0	0	0	0	0	1	0.1	0	1 (2018)
113.	Razorbill/Guillemot	26	196	316	21	554	95	0	82	0	0	1290	129	1	554 (2021)
114.	Guillemot	1	0	0	0	5	0	0	0	0	0	6	0.6	1	5 (2021)
115.	Red-throated Diver	224	135	142	110	1544	119	34	214	13	900	3435	344	12	1544 (2021)
116.	Black-throated Diver	0	2	0	0	1	1	0	0	0	0	4	0.4	0	2 (2018)
117.	Great Northern Diver	0	0	0	0	1	1	0	0	0	0	2	0.2	0	1 (2021)
118.	diver sp.	1	2	0	2	2	0	0	3	1	0	11	1.1	0	3 (2024)
119.	Fulmar	0	0	0	1	1	0	0	0	1	0	3	0.3	0	1 (2020)
120.	Black Stork	3	0	0	0	0	0	0	0	0	0	3	0.3	0	3 (2017)
121.	White Stork	12	5	13	5	0	4	5	6	12	0	62	6.2	1	13 (2019)
122.	Gannet	41	130	23	51	405	20	7	28	63	41	809	81	2	405 (2021)
123.	Cormorant	4033	3938	7471	6846	2876	4801	2624	2256	2907	280	38032	3803	372	7471 (2019)
124.	Cormorant (p. c. carbo)	0	1	0	0	0	0	0	0	0	0	1	0.1	0	1 (2018)
125.	Spoonbill	346	461	378	399	418	383	275	230	456	0	3346	335	1	461 (2018)
126.	Bittern	0	0	0	2	0	0	0	3	2	0	7	0.7	1	3 (2024)
127.	Night Heron	2	0	0	0	2	0	0	0	0	0	4	0.4	0	2 (2017)
128.	Little Egret	3	1	4	2	2	2	3	4	1	0	22	2.2	0	4 (2019)
129.	Egretta sp.	0	0	1	0	0	0	0	0	0	0	1	0.1	0	1 (2019)
130.	Cattle Egret	0	0	1	0	1	2	1	1	0	0	6	0.6	0	2 (2022)
131.	Great White Egret	6	32	46	51	35	81	36	49	67	0	403	40	0	81 (2022)
132.	heron sp.	1	0	0	1	0	0	0	0	0	0	2	0.2	0	1 (2017)
133.	Grey Heron	249	412	369	458	155	369	243	290	511	2	3058	306	11	511 (2025)
134.	Purple Heron	6	18	12	13	6	19	13	13	5	0	105	11	0	19 (2022)
135.	Osprey	2	7	7	8	6	0	8	2	3	0	43	4.3	0	8 (2020)
136.	Honey Buzzard	5	4	0	2	1	2	0	5	5	0	24	2.4	2	5 (2017)
137.	Booted Eagle	0	0	0	2	0	0	0	0	0	0	2	0.2	0	2 (2020)
138.	Sparrowhawk	30	33	59	40	25	20	36	17	50	0	310	31	6	59 (2019)
139.	Goshawk	10	4	4	3	3	2	4	1	2	0	33	3.3	10	10 (2017)
140.	Marsh Harrier	101	102	93	133	81	84	63	81	118	0	856	86	2	133 (2020)
141.	Hen Harrier	2	2	7	11	5	3	4	7	8	0	49	4.9	1	11 (2020)
142.	Pallid Harrier	1	1	0	2	0	1	1	2	0	0	8	0.8	0	2 (2020)
143.	Montagu's Harrier	0	0	1	0	0	0	1	0	1	0	3	0.3	0	1 (2019)
144.	Montagu's/Pallid Harrier	1	0	0	0	1	0	0	0	0	0	2	0.2	0	1 (2017)
145.	Red Kite	1	3	0	1	2	2	2	2	1	0	14	1.4	0	3 (2018)
146.	Black Kite	1	1	4	3	3	2	3	0	1	0	18	1.8	0	4 (2019)
147.	White-tailed Eagle	0	2	1	3	0	0	0	0	0	0	6	0.6	0	3 (2020)
148.	Rough-legged Buzzard	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2022)
149.	Common Buzzard	7	11	20	22	5	5	21	16	10	0	117	12	41	22 (2020)
150.	Short-eared Owl	0	2	0	3	1	1	0	0	2	0	9	0.9	0	3 (2020)
	Species	2017	2018	2019	2020	2021	2022	2023	2024	2025	2026	Totals	Average	Present	Year Maximum
151.	Hoopoe	0	0	1	0	1	0	0	0	0	0	2	0.2	0	1 (2019)
152.	European Bee-eater	3	3	1	0	1	4	2	4	21	0	39	3.9	0	21 (2025)
153.	Lesser Spotted Woodpecker	2	0	2	1	0	0	0	0	1	0	6	0.6	0	2 (2017)
154.	Great Spotted Woodpecker	133	57	92	53	43	31	32	32	49	0	522	52	44	133 (2017)
155.	Green Woodpecker	0	0	0	1	0	0	0	0	0	0	1	0.1	0	1 (2020)
156.	Kestrel	35	23	41	47	22	35	39	18	98	0	358	36	24	98 (2025)
157.	falcon sp.	0	1	0	0	0	0	1	0	0	0	2	0.2	0	1 (2018)
158.	Red-footed Falcon	3	0	0	1	0	0	2	0	1	0	7	0.7	0	3 (2017)
159.	Merlin	4	7	12	19	9	8	7	6	14	0	86	8.6	0	19 (2020)
160.	Hobby	5	8	13	9	4	6	7	10	8	0	70	7	1	13 (2019)
161.	Saker Falcon	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2024)
162.	Peregrine	17	15	11	8	7	5	4	7	5	0	79	7.9	3	17 (2017)
163.	Rose-ringed Parakeet	0	0	5	4	0	0	4	1	16	0	30	3	0	16 (2025)
164.	Golden Oriole	6	13	4	11	15	5	21	13	7	0	95	9.5	0	21 (2023)
165.	Great Grey Shrike	0	0	1	0	0	0	0	0	0	0	1	0.1	0	1 (2019)
166.	Jay	13	4	203	15	20	59	5	2	7	0	328	33	8	203 (2019)
167.	Magpie	6	23	43	111	39	44	23	59	80	0	428	43	25	111 (2020)
168.	Jackdaw	779	694	1947	601	1341	554	415	548	842	1	7722	772	17	1947 (2019)
169.	Rook	2	17	7	4	15	7	8	4	11	0	75	7.5	0	17 (2018)
170.	Carrion Crow	99	236	121	152	95	134	189	168	286	3	1483	148	64	286 (2025)
171.	Hooded Crow	0	2	0	0	1	2	0	1	0	0	6	0.6	0	2 (2018)
172.	Raven	4	1	3	2	0	3	5	2	3	0	23	2.3	0	5 (2023)
173.	Waxwing	0	0	0	0	0	0	0	5	0	0	5	0.5	0	5 (2024)
174.	Coal Tit	13	1	3	4	24	0	0	0	88	0	133	13	2	88 (2025)
175.	Crested Tit	0	0	0	0	0	0	0	3	0	0	3	0.3	0	3 (2024)
176.	Blue Tit	143	11	5542	52	171	22	10	7	13962	3	19923	1992	2	13962 (2025)
177.	Great Tit	85	51	104	37	90	11	25	7	478	0	888	89	7	478 (2025)
178.	Penduline Tit	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2025)
179.	Bearded Tit	0	0	0	0	5	0	0	0	0	0	5	0.5	0	5 (2021)
180.	Wood Lark	45	74	119	12	88	93	6	15	42	0	494	49	57	119 (2019)
181.	Skylark	144	391	1754	81	849	1021	11	47	500	0	4798	480	1	1754 (2019)
182.	Shore Lark	0	0	0	2	0	0	0	0	0	0	2	0.2	0	2 (2020)
183.	Sand Martin	406	146	918	935	535	323	505	233	957	0	4958	496	4	957 (2025)
184.	Swallow	3490	3610	2903	2818	3882	1373	1907	1707	1997	0	23687	2369	122	3882 (2021)
185.	House Martin	1022	573	569	372	394	245	408	409	778	0	4770	477	228	1022 (2017)
186.	Red-rumped Swallow	0	0	0	1	0	0	1	0	1	0	3	0.3	0	1 (2020)
187.	swallow sp.	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2023)
188.	Long-tailed Tit	12	12	12	1	0	0	0	0	14	0	51	5.1	0	14 (2025)
189.	Wood Warbler	1	0	1	0	0	0	1	0	0	0	3	0.3	0	1 (2017)
190.	Willow Warbler	2	1	4	8	2	3	0	2	5	0	27	2.7	9	8 (2020)
191.	Chiffchaff	16	32	13	24	11	11	9	13	24	0	153	15	13	32 (2018)
192.	Chiffchaff/Willow Warbler	1	5	4	17	11	18	2	4	19	0	81	8.1	0	19 (2025)
193.	Phylloscopus sp.	0	0	0	1	0	1	0	0	0	0	2	0.2	0	1 (2020)
194.	Icterine Warbler	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2023)
195.	Blackcap	0	0	6	7	6	1	1	0	0	0	21	2.1	2	7 (2020)
196.	Garden Warbler	0	1	0	0	0	0	1	0	0	0	2	0.2	0	1 (2018)
197.	Lesser Whitethroat	0	0	1	1	1	0	2	1	2	0	8	0.8	1	2 (2023)
198.	Whitethroat	0	0	0	1	0	0	0	0	1	0	2	0.2	0	1 (2020)
199.	Firecrest	0	0	6	1	5	0	1	0	35	0	48	4.8	0	35 (2025)
200.	Goldcrest	9	2	53	3	11	0	0	0	125	0	203	20	8	125 (2025)
	Species	2017	2018	2019	2020	2021	2022	2023	2024	2025	2026	Totals	Average	Present	Year Maximum
201.	Nuthatch	1	0	3	1	1	0	0	0	0	0	6	0.6	0	3 (2019)
202.	Short-toed Tree Creeper	0	0	0	0	0	2	0	0	4	0	6	0.6	0	4 (2025)
203.	Crested Myna	0	0	0	1	0	0	0	0	0	0	1	0.1	0	1 (2020)
204.	Rose-coloured Starling	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2021)
205.	Starling	162790	5744	78716	91072	147183	15202	36439	7706	24896	55	569803	56980	1631	162790 (2017)
206.	Purple Starling	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2023)
207.	Song Thrush	279	732	2790	615	513	1915	107	34	7754	0	14739	1474	24	7754 (2025)
208.	Mistle Thrush	80	158	131	36	87	140	22	66	179	0	899	90	21	179 (2025)
209.	Redwing	45	797	5269	306	34185	1054	7	538	4222	557	46980	4698	3	34185 (2021)
210.	Blackbird	13	17	42	8	60	59	3	4	38	0	244	24	10	60 (2021)
211.	Fieldfare	21	31	22901	123	317	311	5	10	1532	2	25253	2525	0	22901 (2019)
212.	Ring Ouzel	22	145	296	262	98	211	92	37	104	0	1267	127	43	296 (2019)
213.	thrush sp.	5	0	0	0	0	0	0	14	0	0	19	1.9	0	14 (2024)
214.	Spotted Flycatcher	16	56	14	39	7	9	10	76	40	0	267	27	15	76 (2024)
215.	Pied Flycatcher	0	0	1	0	0	0	1	2	0	0	4	0.4	0	2 (2024)
216.	Black Redstart	0	1	2	1	1	0	0	0	0	0	5	0.5	0	2 (2019)
217.	Redstart	0	0	1	0	0	0	0	1	1	0	3	0.3	0	1 (2019)
218.	Whinchat	1	0	2	0	1	0	1	3	1	0	9	0.9	0	3 (2024)
219.	Stonechat	1	0	0	0	1	1	1	0	0	0	4	0.4	3	1 (2017)
220.	Wheatear	3	15	37	40	11	5	10	8	11	0	140	14	7	40 (2020)
221.	Tree Sparrow	21	14	55	5	20	1	0	0	4	0	120	12	5	55 (2019)
222.	House Sparrow	28	22	43	57	10	7	1	0	10	0	178	18	7	57 (2020)
223.	Dunnock	79	44	106	27	51	33	12	24	25	0	401	40	31	106 (2019)
224.	Blue-headed Wagtail	39	288	336	419	20	32	196	11	113	0	1454	145	7	419 (2020)
225.	Yellow Wagtail (flavissima)	9	7	12	35	12	5	5	3	9	0	97	9.7	0	35 (2020)
226.	Grey-headed Wagtail	28	80	33	20	3	4	23	89	32	0	312	31	0	89 (2024)
227.	Yellow wagtail sp.	751	598	824	1304	735	635	372	432	720	0	6371	637	0	1304 (2020)
228.	Citrine Wagtail	1	1	1	0	0	0	0	0	0	0	3	0.3	0	1 (2017)
229.	Grey Wagtail	37	14	103	34	38	17	5	19	52	0	319	32	0	103 (2019)
230.	White Wagtail	810	594	275	222	124	289	92	87	317	0	2810	281	26	810 (2017)
231.	alba wagtail sp.	339	372	243	614	107	383	193	353	263	0	2867	287	4	614 (2020)
232.	Motacilla (wagtail) sp.	0	0	0	0	0	0	0	0	2	0	2	0.2	0	2 (2025)
233.	Pied Wagtail	13	19	12	5	7	9	4	13	16	0	98	9.8	0	19 (2018)
234.	Richard's Pipit	0	0	1	2	1	2	0	0	1	0	7	0.7	0	2 (2020)
235.	Tawny Pipit	0	0	1	1	0	0	0	0	0	0	2	0.2	0	1 (2019)
236.	Meadow Pipit	7403	6712	27484	14747	11625	4752	9118	1990	6076	39	89946	8995	59	27484 (2019)
237.	Tree Pipit	81	160	277	446	128	266	173	150	211	0	1892	189	4	446 (2020)
238.	Red-throated Pipit	1	0	0	0	0	1	0	0	0	0	2	0.2	0	1 (2017)
239.	Water Pipit	0	0	2	0	1	6	1	2	0	0	12	1.2	0	6 (2022)
240.	Rock Pipit	16	5	3	3	2	16	2	5	5	0	57	5.7	0	16 (2017)
241.	Rock Pipit/Water Pipit	1	7	14	8	4	11	6	3	5	0	59	5.9	0	14 (2019)
242.	pipit sp.	1	0	0	0	0	0	0	0	1	0	2	0.2	0	1 (2017)
243.	Chaffinch	18338	1116	52507	12075	24804	6560	1404	1411	5502	24	123741	12374	1006	52507 (2019)
244.	Brambling	432	79	434	289	3542	590	382	173	364	0	6285	629	202	3542 (2021)
245.	Hawfinch	28	80	34	93	25	52	53	151	151	0	667	67	6	151 (2024)
246.	Bullfinch	3	7	7	0	1	1	3	1	2	0	25	2.5	0	7 (2018)
247.	Common Rosefinch	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2021)
248.	Greenfinch	202	339	320	214	98	114	52	49	70	3	1461	146	213	339 (2018)
249.	Linnet	1004	690	779	2239	643	461	481	369	432	0	7098	710	182	2239 (2020)
250.	Mealy Redpoll	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2024)
	Species	2017	2018	2019	2020	2021	2022	2023	2024	2025	2026	Totals	Average	Present	Year Maximum
251.	Lesser Redpoll	5	4	1	0	2	0	4	0	0	0	16	1.6	0	5 (2017)
252.	Redpoll	64	33	42	10	100	13	78	187	90	0	617	62	1	187 (2024)
253.	Crossbill	705	27	304	248	284	89	255	4	41	0	1957	196	43	705 (2017)
254.	Goldfinch	190	161	285	266	126	156	192	138	257	2	1773	177	100	285 (2019)
255.	Serin	3	3	2	2	5	0	1	0	0	0	16	1.6	0	5 (2021)
256.	Siskin	771	258	10918	224	5157	321	68	425	640	0	18782	1878	117	10918 (2019)
257.	Lapland Bunting	2	2	3	10	1	1	0	0	0	0	19	1.9	0	10 (2020)
258.	Snow Bunting	1	16	1	0	0	0	0	0	0	0	18	1.8	0	16 (2018)
259.	Yellowhammer	0	1	2	1	2	2	0	1	4	0	13	1.3	0	4 (2025)
260.	Ortolan Bunting	0	0	0	1	0	0	0	0	0	0	1	0.1	0	1 (2020)
261.	Little Bunting	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2022)
262.	Reed Bunting	142	240	274	150	155	313	25	143	120	2	1564	156	10	313 (2022)
263.	bunting sp.	0	0	2	0	0	0	0	0	0	0	2	0.2	0	2 (2019)
264.	passerine sp.	0	0	0	2	0	1	0	0	0	0	3	0.3	0	2 (2020)
	Other species
1.	Harbour Porpoise	0	0	2	2	1	0	0	5	0	0	10	1	0	5 (2024)
	Other species
1.	Small Tortoiseshell	1	0	0	0	0	1	0	0	0	0	2	0.2	0	1 (2017)
2.	Brimstone	3	1	4	4	0	0	1	1	0	0	14	1.4	0	4 (2019)
3.	European Peacock	1	2	0	0	0	0	1	1	0	0	5	0.5	0	2 (2018)
4.	Large White	0	0	6	1	0	0	0	0	0	0	7	0.7	0	6 (2019)
5.	Green-veined White	0	0	1	0	0	0	0	0	0	0	1	0.1	0	1 (2019)
6.	Small White	1	0	4	0	0	0	0	0	0	0	5	0.5	0	4 (2019)
7.	white sp. (butterfly)	0	0	3	1	0	0	0	0	0	0	4	0.4	0	3 (2019)
8.	Comma	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2022)
9.	Red Admiral	37	0	4	6	1	1	2	0	0	0	51	5.1	0	37 (2017)
10.	Painted Lady	0	0	45	0	0	0	0	0	0	0	45	4.5	10	45 (2019)
11.	Small Heath	0	0	2	0	0	0	0	0	0	0	2	0.2	0	2 (2019)
	Other species
1.	Bumblebee sp.	59	14	10	46	5	5	6	18	8	0	171	17	0	59 (2017)
	Species	2017	2018	2019	2020	2021	2022	2023	2024	2025	2026	Totals	Average	Present	Year Maximum
	Totals	241474	70936	264586	206689	292523	76537	101772	49719	115096	2087	1421419	142142	7054
	Observation hours	272:45	304:23	312:34	291:43	220:32	208:10	217:32	171:33	196:56	1:45	2,197:53	219:47

Trektellen

Totals Berkheide (Katwijk) 2017 - 2026