Totals Berkheide (Katwijk) 2015 - 2024

	Species	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	Totals	Average	Present	Year Maximum
1.	Fulvous Whistling Duck	10	0	0	0	0	0	0	0	0	0	10	1	0	10 (2015)
2.	Dark-bellied Brent Goose	118	166	79	239	149	174	527	331	108	23	1914	191	1	527 (2021)
3.	Canada Goose	137	31	144	199	376	358	194	182	200	139	1960	196	2	376 (2019)
4.	Barnacle Goose	683	1234	2761	8796	4813	10434	5775	3836	4700	6674	49706	4971	0	10434 (2020)
5.	Lesser Canada Goose	0	0	0	0	1	0	0	1	0	0	2	0.2	0	1 (2019)
6.	Bar-headed Goose	0	0	0	0	0	2	0	0	0	0	2	0.2	0	2 (2020)
7.	Greylag Goose	647	678	809	1013	1585	1069	465	1012	783	1227	9288	929	4	1585 (2019)
8.	Anser sp.	19	171	121	0	0	0	0	0	0	0	311	31	0	171 (2016)
9.	goose sp.	120	1211	26	225	1172	334	10791	138	241	4729	18987	1899	0	10791 (2021)
10.	Domestic Goose	0	1	0	0	0	0	0	0	0	0	1	0.1	0	1 (2016)
11.	Pink-footed Goose	78	197	11	31	590	190	3442	6	0	149	4694	469	0	3442 (2021)
12.	Tundra Bean Goose	57	13	28	0	0	4	93	500	1	0	696	70	0	500 (2022)
13.	Bean Goose sp.	0	3	0	0	0	0	0	0	0	0	3	0.3	0	3 (2016)
14.	Eurasian White-fronted Goose	284	155	606	390	656	378	1541	1829	399	646	6884	688	0	1829 (2022)
15.	Lesser White-fronted Goose	0	0	0	0	0	0	0	0	0	2	2	0.2	0	2 (2024)
16.	Black Swan	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2022)
17.	Mute Swan	52	163	100	72	184	215	162	90	63	76	1177	118	11	215 (2020)
18.	Bewick's Swan	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2021)
19.	Whooper Swan	4	0	0	6	0	2	32	0	0	0	44	4.4	0	32 (2021)
20.	Egyptian Goose	103	138	128	91	213	339	219	310	201	407	2149	215	9	407 (2024)
21.	Shelduck	95	252	255	435	744	384	253	246	334	172	3170	317	12	744 (2019)
22.	Ruddy Shelduck	0	1	15	0	12	2	0	2	2	0	34	3.4	0	15 (2017)
23.	Garganey	0	0	5	4	0	7	6	5	0	1	28	2.8	0	7 (2020)
24.	Shoveler	50	120	274	175	243	520	320	500	65	232	2499	250	0	520 (2020)
25.	Gadwall	38	41	99	52	78	105	60	68	77	42	660	66	0	105 (2020)
26.	Wigeon	47	337	100	1272	539	230	490	398	17	93	3523	352	37	1272 (2018)
27.	American Wigeon	0	0	0	1	0	0	0	0	0	0	1	0.1	0	1 (2018)
28.	Mallard	24	14	58	46	60	81	17	23	45	22	390	39	0	81 (2020)
29.	Pintail	21	81	314	23	21	45	165	65	28	222	985	99	0	314 (2017)
30.	Teal	1	634	31	81	78	51	141	62	2	6	1087	109	0	634 (2016)
31.	duck sp.	40	54	71	38	0	19	4	6	5	17	254	25	0	71 (2017)
32.	Red-crested Pochard	3	18	7	24	11	0	5	14	14	7	103	10	3	24 (2018)
33.	Pochard	6	26	48	29	25	7	23	54	22	40	280	28	0	54 (2022)
34.	Ring-necked Duck	0	0	0	0	0	0	0	0	0	1	1	0.1	0	1 (2024)
35.	Tufted Duck	7	19	35	14	6	45	24	35	18	7	210	21	0	45 (2020)
36.	Scaup	0	9	0	1	0	0	30	0	0	0	40	4	0	30 (2021)
37.	Aythya sp.	0	58	0	0	0	0	0	0	0	0	58	5.8	0	58 (2016)
38.	King Eider	0	0	0	0	0	0	0	0	0	1	1	0.1	0	1 (2024)
39.	Eider	29	73	51	81	102	142	82	118	54	72	804	80	0	142 (2020)
40.	Velvet Scoter	1	3	5	5	0	2	2	0	0	15	33	3.3	0	15 (2024)
41.	Common Scoter	201	618	2210	1119	500	674	1720	534	346	1554	9476	948	87	2210 (2017)
42.	scoter sp.	0	2	9	0	0	0	0	0	0	0	11	1.1	0	9 (2017)
43.	Long-tailed Duck	0	0	0	0	0	0	1	0	0	1	2	0.2	0	1 (2021)
44.	Goldeneye	2	1	8	0	2	6	2	0	0	0	21	2.1	0	8 (2017)
45.	Smew	0	0	0	3	0	0	24	0	0	0	27	2.7	0	24 (2021)
46.	Goosander	3	3	8	28	21	14	17	3	9	23	129	13	0	28 (2018)
47.	Red-breasted Merganser	4	67	59	82	31	97	78	48	37	19	522	52	0	97 (2020)
48.	Alpine Swift	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2021)
49.	Swift	1445	1934	11043	6648	9961	16739	3970	4900	16824	3283	76747	7675	780	16824 (2023)
50.	Cuckoo	4	23	11	14	9	9	5	3	20	12	110	11	15	23 (2016)
	Species	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	Totals	Average	Present	Year Maximum
51.	Stock Dove	86	137	152	185	215	246	96	387	128	162	1794	179	82	387 (2022)
52.	Woodpigeon	2202	3163	1668	5163	1739	2989	2260	5579	4114	2100	30977	3098	421	5579 (2022)
53.	Turtle Dove	0	3	1	2	4	3	1	3	2	3	22	2.2	0	4 (2019)
54.	Collared Dove	83	100	118	161	121	144	69	104	139	98	1137	114	12	161 (2018)
55.	Crane	0	0	0	17	0	0	0	3	0	72	92	9.2	0	72 (2024)
56.	Great Crested Grebe	62	148	20	69	150	50	135	355	10	14	1013	101	258	355 (2022)
57.	Greater Flamingo	0	0	0	0	0	0	0	0	2	0	2	0.2	0	2 (2023)
58.	Oystercatcher	211	420	327	735	318	429	433	413	665	391	4342	434	8	735 (2018)
59.	Avocet	0	18	10	27	1	86	14	146	2	25	329	33	0	146 (2022)
60.	Grey Plover	1	29	139	14	16	15	175	12	128	58	587	59	0	175 (2021)
61.	Golden Plover	9	10	87	250	21	31	57	55	21	6	547	55	0	250 (2018)
62.	Dotterel	0	1	5	1	22	2	0	5	0	0	36	3.6	0	22 (2019)
63.	Ringed Plover	8	20	44	103	200	59	18	20	108	101	681	68	0	200 (2019)
64.	Charadrius h. tundrae	0	0	0	0	0	0	0	0	12	0	12	1.2	0	12 (2023)
65.	Little Ringed Plover	7	15	18	27	15	22	18	37	33	8	200	20	12	37 (2022)
66.	Lapwing	481	241	110	1154	90	94	256	182	151	111	2870	287	46	1154 (2018)
67.	Whimbrel	34	159	284	403	397	1486	633	251	348	138	4133	413	0	1486 (2020)
68.	Curlew	64	110	86	105	276	168	75	119	104	22	1129	113	1	276 (2019)
69.	Bar-tailed Godwit	1	41	62	22	13	36	121	83	22	9	410	41	0	121 (2021)
70.	Black-tailed Godwit	8	12	24	41	21	20	1	66	14	30	237	24	0	66 (2022)
71.	Icelandic Black-tailed Godwit	0	0	0	1	0	0	1	0	0	0	2	0.2	0	1 (2018)
72.	Jack Snipe	0	1	0	0	1	0	0	1	0	0	3	0.3	0	1 (2016)
73.	Woodcock	1	3	2	0	1	1	2	1	0	0	11	1.1	0	3 (2016)
74.	Snipe	48	19	39	58	54	60	32	68	7	42	427	43	0	68 (2022)
75.	Common Sandpiper	0	0	0	1	3	0	2	0	1	0	7	0.7	0	3 (2019)
76.	Green Sandpiper	25	14	91	53	119	210	83	144	84	17	840	84	0	210 (2020)
77.	Wood Sandpiper	0	3	4	15	7	13	3	13	4	1	63	6.3	0	15 (2018)
78.	Redshank	8	28	165	58	107	199	37	198	94	61	955	96	0	199 (2020)
79.	Spotted Redshank	1	1	7	6	8	3	1	11	1	2	41	4.1	0	11 (2022)
80.	Greenshank	4	36	151	29	49	66	35	147	65	23	605	61	0	151 (2017)
81.	Turnstone	0	2	3	1	0	1	0	0	4	0	11	1.1	0	4 (2023)
82.	Knot	0	29	28	19	43	78	14	61	1	1	274	27	0	78 (2020)
83.	Ruff	26	12	67	68	0	58	1	61	23	60	376	38	0	68 (2018)
84.	wader sp.	6	33	82	50	18	137	192	11	27	54	610	61	0	192 (2021)
85.	small wader	0	0	0	0	0	0	0	0	0	2	2	0.2	0	2 (2024)
86.	large wader	0	0	0	0	0	0	0	0	0	6	6	0.6	0	6 (2024)
87.	Temminck's Stint	0	0	6	0	0	0	0	0	0	0	6	0.6	0	6 (2017)
88.	Sanderling	24	53	82	0	15	67	48	0	0	1	290	29	50	82 (2017)
89.	Dunlin	258	317	26	24	131	33	137	704	9	10	1649	165	0	704 (2022)
90.	Purple Sandpiper	0	3	0	0	0	0	0	0	0	0	3	0.3	0	3 (2016)
91.	Little Stint	0	0	6	0	0	0	0	0	0	0	6	0.6	0	6 (2017)
92.	Little / Temminck's Stint	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2023)
93.	Calidris sp.	0	0	53	0	3	13	28	3	3	13	116	12	0	53 (2017)
94.	Little Tern	1	50	33	21	18	78	14	9	8	5	237	24	0	78 (2020)
95.	Gull-billed Tern	0	0	2	2	0	2	1	0	0	3	10	1	0	3 (2024)
96.	Caspian Tern	0	0	0	0	0	0	1	1	6	3	11	1.1	0	6 (2023)
97.	Black Tern	1	11	42	0	24	237	8	12	10	14	359	36	0	237 (2020)
98.	Arctic Tern	0	11	0	4	30	32	45	0	0	0	122	12	0	45 (2021)
99.	Common/Arctic Tern	0	13	895	0	112	403	156	71	297	230	2177	218	10	895 (2017)
100.	Common Tern	230	558	344	349	585	7741	985	291	543	506	12132	1213	49	7741 (2020)
	Species	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	Totals	Average	Present	Year Maximum
101.	sterna sp.	0	0	0	0	0	0	0	0	0	1	1	0.1	0	1 (2024)
102.	Sandwich Tern	32	200	705	321	667	994	404	134	142	105	3704	370	45	994 (2020)
103.	Little Gull	20	317	51	130	924	1911	5638	469	781	103	10344	1034	74	5638 (2021)
104.	Kittiwake	105	2	3	2	0	0	4	1	0	0	117	12	0	105 (2015)
105.	Black-headed Gull	1441	7439	3659	4060	2184	3657	2563	3578	4882	614	34077	3408	64	7439 (2016)
106.	Mediterranean Gull	10	5	13	58	23	150	24	12	66	18	379	38	0	150 (2020)
107.	Common Gull	122	1860	1380	520	317	1343	403	700	850	1075	8570	857	79	1860 (2016)
108.	Caspian Gull	0	0	0	0	0	0	0	0	2	1	3	0.3	0	2 (2023)
109.	Herring Gull	3434	1527	2013	813	876	2121	779	256	1225	178	13222	1322	1822	3434 (2015)
110.	Yellow-legged Gull	0	0	1	0	0	0	0	1	0	0	2	0.2	1	1 (2017)
111.	Great Black-backed Gull	290	109	98	24	42	107	57	10	10	8	755	76	141	290 (2015)
112.	Glaucous Gull	0	0	2	1	1	0	0	0	1	0	5	0.5	0	2 (2017)
113.	Lesser Black-backed Gull	1708	3786	2192	3306	2902	8465	1633	2326	5057	1803	33178	3318	450	8465 (2020)
114.	Iceland Gull	1	0	2	0	1	1	0	2	0	0	7	0.7	0	2 (2017)
115.	Arctic Skua	0	0	0	0	3	1	2	1	0	0	7	0.7	0	3 (2019)
116.	Great Skua	2	0	1	0	0	0	0	0	0	0	3	0.3	0	2 (2015)
117.	Razorbill	1	0	0	1	0	0	0	0	0	0	2	0.2	0	1 (2015)
118.	Razorbill/Guillemot	22	19	26	196	316	21	554	95	0	82	1331	133	3	554 (2021)
119.	Guillemot	0	0	1	0	0	0	5	0	0	0	6	0.6	1	5 (2021)
120.	Red-throated Diver	27	475	224	135	142	110	1544	119	34	213	3023	302	27	1544 (2021)
121.	Black-throated Diver	2	2	0	2	0	0	1	1	0	0	8	0.8	1	2 (2015)
122.	Great Northern Diver	0	1	0	0	0	0	1	1	0	0	3	0.3	0	1 (2016)
123.	diver sp.	0	2	1	2	0	2	2	0	0	3	12	1.2	0	3 (2024)
124.	Leach's Petrel	1	0	0	0	0	0	0	0	0	0	1	0.1	0	1 (2015)
125.	Fulmar	0	1	0	0	0	1	1	0	0	0	3	0.3	0	1 (2016)
126.	Black Stork	0	4	3	0	0	0	0	0	0	0	7	0.7	0	4 (2016)
127.	White Stork	2	5	12	5	13	5	0	4	5	6	57	5.7	1	13 (2019)
128.	Gannet	146	110	41	130	23	51	405	20	7	20	953	95	28	405 (2021)
129.	Cormorant	2613	2102	4033	3938	7471	6846	2876	4801	2624	1778	39082	3908	576	7471 (2019)
130.	Cormorant (p. c. carbo)	0	0	0	1	0	0	0	0	0	0	1	0.1	0	1 (2018)
131.	Spoonbill	64	105	346	461	378	399	418	383	275	230	3059	306	1	461 (2018)
132.	Bittern	0	0	0	0	0	2	0	0	0	3	5	0.5	0	3 (2024)
133.	Night Heron	0	0	2	0	0	0	2	0	0	0	4	0.4	0	2 (2017)
134.	Little Egret	2	0	3	1	4	2	2	2	3	4	23	2.3	0	4 (2019)
135.	Egretta sp.	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2019)
136.	Cattle Egret	0	0	0	0	1	0	1	2	1	1	6	0.6	0	2 (2022)
137.	Great White Egret	6	13	6	32	46	51	35	81	36	49	355	36	2	81 (2022)
138.	heron sp.	0	1	1	0	0	1	0	0	0	0	3	0.3	0	1 (2016)
139.	Grey Heron	83	168	249	412	369	458	155	369	243	290	2796	280	12	458 (2020)
140.	Purple Heron	3	6	6	18	12	13	6	19	13	13	109	11	0	19 (2022)
141.	Osprey	2	10	2	7	7	8	6	0	8	2	52	5.2	0	10 (2016)
142.	Honey Buzzard	0	2	5	4	0	2	1	2	0	5	21	2.1	0	5 (2017)
143.	Booted Eagle	0	0	0	0	0	2	0	0	0	0	2	0.2	0	2 (2020)
144.	Sparrowhawk	26	41	30	33	59	40	25	20	36	16	326	33	6	59 (2019)
145.	Goshawk	3	4	10	4	4	3	3	2	4	1	38	3.8	10	10 (2017)
146.	Marsh Harrier	10	43	101	102	93	133	81	84	63	81	791	79	4	133 (2020)
147.	Hen Harrier	2	5	2	2	7	11	5	3	4	7	48	4.8	1	11 (2020)
148.	Pallid Harrier	0	1	1	1	0	2	0	1	1	2	9	0.9	0	2 (2020)
149.	Montagu's Harrier	0	1	0	0	1	0	0	0	1	0	3	0.3	0	1 (2016)
150.	Montagu's/Pallid Harrier	0	0	1	0	0	0	1	0	0	0	2	0.2	0	1 (2017)
	Species	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	Totals	Average	Present	Year Maximum
151.	Red Kite	0	1	1	3	0	1	2	2	2	2	14	1.4	0	3 (2018)
152.	Black Kite	1	2	1	1	4	3	3	2	3	0	20	2	0	4 (2019)
153.	White-tailed Eagle	1	1	0	2	1	3	0	0	0	0	8	0.8	0	3 (2020)
154.	Rough-legged Buzzard	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2022)
155.	Common Buzzard	19	39	7	11	20	22	5	5	21	16	165	17	55	39 (2016)
156.	Short-eared Owl	0	3	0	2	0	3	1	1	0	0	10	1	0	3 (2016)
157.	Hoopoe	1	1	0	0	1	0	1	0	0	0	4	0.4	0	1 (2015)
158.	Kingfisher	0	1	0	0	0	0	0	0	0	0	1	0.1	0	1 (2016)
159.	European Bee-eater	0	2	3	3	1	0	1	4	2	4	20	2	0	4 (2022)
160.	Lesser Spotted Woodpecker	0	0	2	0	2	1	0	0	0	0	5	0.5	0	2 (2017)
161.	Great Spotted Woodpecker	33	35	133	57	92	53	43	31	32	29	538	54	47	133 (2017)
162.	Green Woodpecker	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2020)
163.	Kestrel	17	38	35	23	41	47	22	35	39	18	315	32	26	47 (2020)
164.	falcon sp.	1	0	0	1	0	0	0	0	1	0	3	0.3	0	1 (2015)
165.	Red-footed Falcon	0	7	3	0	0	1	0	0	2	0	13	1.3	1	7 (2016)
166.	Merlin	3	5	4	7	12	19	9	8	7	6	80	8	0	19 (2020)
167.	Hobby	2	9	5	8	13	9	4	6	7	10	73	7.3	1	13 (2019)
168.	Saker Falcon	0	0	0	0	0	0	0	0	0	1	1	0.1	0	1 (2024)
169.	Peregrine	1	7	17	15	11	8	7	5	4	7	82	8.2	3	17 (2017)
170.	Rose-ringed Parakeet	0	0	0	0	5	4	0	0	4	1	14	1.4	0	5 (2019)
171.	Golden Oriole	1	5	6	13	4	11	15	5	21	13	94	9.4	0	21 (2023)
172.	Great Grey Shrike	0	1	0	0	1	0	0	0	0	0	2	0.2	0	1 (2016)
173.	Red-backed Shrike	1	0	0	0	0	0	0	0	0	0	1	0.1	0	1 (2015)
174.	Jay	15	31	13	4	203	15	20	59	5	2	367	37	8	203 (2019)
175.	Magpie	24	27	6	23	43	111	39	44	23	59	399	40	29	111 (2020)
176.	Jackdaw	337	1000	779	694	1947	601	1341	554	415	548	8216	822	13	1947 (2019)
177.	Rook	2	3	2	17	7	4	15	7	8	4	69	6.9	0	17 (2018)
178.	Carrion Crow	69	77	99	236	121	152	95	134	189	168	1340	134	109	236 (2018)
179.	Hooded Crow	0	0	0	2	0	0	1	2	0	1	6	0.6	0	2 (2018)
180.	Raven	2	2	4	1	3	2	0	3	5	2	24	2.4	0	5 (2023)
181.	Waxwing	1	2	0	0	0	0	0	0	0	5	8	0.8	0	5 (2024)
182.	Coal Tit	7	1	13	1	3	4	24	0	0	0	53	5.3	2	24 (2021)
183.	Crested Tit	0	0	0	0	0	0	0	0	0	3	3	0.3	0	3 (2024)
184.	Blue Tit	79	31	143	11	5542	52	171	22	10	7	6068	607	2	5542 (2019)
185.	Great Tit	37	49	85	51	104	37	90	11	25	7	496	50	7	104 (2019)
186.	Bearded Tit	0	0	0	0	0	0	5	0	0	0	5	0.5	0	5 (2021)
187.	Wood Lark	48	54	45	74	119	12	88	93	6	15	554	55	76	119 (2019)
188.	Skylark	1242	291	144	391	1754	81	849	1021	11	47	5831	583	1	1754 (2019)
189.	Shore Lark	0	0	0	0	0	2	0	0	0	0	2	0.2	0	2 (2020)
190.	Sand Martin	97	332	406	146	918	935	535	323	505	233	4430	443	4	935 (2020)
191.	Swallow	1338	3764	3490	3610	2903	2818	3882	1373	1907	1707	26792	2679	147	3882 (2021)
192.	House Martin	199	498	1022	573	569	372	394	245	408	409	4689	469	228	1022 (2017)
193.	Red-rumped Swallow	0	1	0	0	0	1	0	0	1	0	3	0.3	0	1 (2016)
194.	swallow sp.	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2023)
195.	Long-tailed Tit	54	20	12	12	12	1	0	0	0	0	111	11	0	54 (2015)
196.	Wood Warbler	0	0	1	0	1	0	0	0	1	0	3	0.3	0	1 (2017)
197.	Willow Warbler	0	1	2	1	4	8	2	3	0	2	23	2.3	7	8 (2020)
198.	Chiffchaff	9	21	16	32	13	24	11	11	9	13	159	16	12	32 (2018)
199.	Chiffchaff/Willow Warbler	0	0	1	5	4	17	11	18	2	4	62	6.2	0	18 (2022)
200.	Phylloscopus sp.	0	0	0	0	0	1	0	1	0	0	2	0.2	0	1 (2020)
	Species	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	Totals	Average	Present	Year Maximum
201.	Icterine Warbler	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2023)
202.	Blackcap	0	3	0	0	6	7	6	1	1	0	24	2.4	2	7 (2020)
203.	Garden Warbler	0	0	0	1	0	0	0	0	1	0	2	0.2	0	1 (2018)
204.	Lesser Whitethroat	0	0	0	0	1	1	1	0	2	1	6	0.6	0	2 (2023)
205.	Whitethroat	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2020)
206.	Firecrest	0	1	0	0	6	1	5	0	1	0	14	1.4	0	6 (2019)
207.	Goldcrest	55	77	9	2	53	3	11	0	0	0	210	21	11	77 (2016)
208.	Nuthatch	0	0	1	0	3	1	1	0	0	0	6	0.6	0	3 (2019)
209.	Short-toed Tree Creeper	0	0	0	0	0	0	0	2	0	0	2	0.2	0	2 (2022)
210.	Crested Myna	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2020)
211.	Rose-coloured Starling	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2021)
212.	Starling	50637	80364	162790	5744	78716	91072	147183	15202	36439	4486	672633	67263	1488	162790 (2017)
213.	Purple Starling	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2023)
214.	Song Thrush	81	704	279	732	2790	615	513	1915	107	34	7770	777	27	2790 (2019)
215.	Mistle Thrush	45	62	80	158	131	36	87	140	22	66	827	83	20	158 (2018)
216.	Redwing	1127	1274	45	797	5269	306	34185	1054	7	522	44586	4459	3	34185 (2021)
217.	Blackbird	52	67	13	17	42	8	60	59	3	1	322	32	19	67 (2016)
218.	Fieldfare	6506	5900	21	31	22901	123	317	311	5	10	36125	3613	25	22901 (2019)
219.	Ring Ouzel	8	16	22	145	296	262	98	211	92	37	1187	119	39	296 (2019)
220.	thrush sp.	0	5	5	0	0	0	0	0	0	14	24	2.4	0	14 (2024)
221.	Spotted Flycatcher	2	58	16	56	14	39	7	9	10	76	287	29	14	76 (2024)
222.	Pied Flycatcher	0	0	0	0	1	0	0	0	1	2	4	0.4	0	2 (2024)
223.	Black Redstart	0	0	0	1	2	1	1	0	0	0	5	0.5	0	2 (2019)
224.	Redstart	1	0	0	0	1	0	0	0	0	1	3	0.3	0	1 (2015)
225.	Rock Thrush	0	1	0	0	0	0	0	0	0	0	1	0.1	0	1 (2016)
226.	Whinchat	0	3	1	0	2	0	1	0	1	3	11	1.1	0	3 (2016)
227.	Stonechat	1	0	1	0	0	0	1	1	1	0	5	0.5	3	1 (2015)
228.	Wheatear	2	15	3	15	37	40	11	5	10	8	146	15	1	40 (2020)
229.	Tree Sparrow	25	28	21	14	55	5	20	1	0	0	169	17	5	55 (2019)
230.	House Sparrow	21	23	28	22	43	57	10	7	1	0	212	21	12	57 (2020)
231.	Dunnock	43	38	79	44	106	27	51	33	12	24	457	46	34	106 (2019)
232.	Blue-headed Wagtail	18	152	39	288	336	419	20	32	196	11	1511	151	7	419 (2020)
233.	Yellow Wagtail (flavissima)	2	8	9	7	12	35	12	5	5	3	98	9.8	2	35 (2020)
234.	Grey-headed Wagtail	0	57	28	80	33	20	3	4	23	89	337	34	0	89 (2024)
235.	Yellow wagtail sp.	103	224	751	598	824	1304	735	635	372	432	5978	598	6	1304 (2020)
236.	Citrine Wagtail	0	0	1	1	1	0	0	0	0	0	3	0.3	0	1 (2017)
237.	Grey Wagtail	14	12	37	14	103	34	38	17	5	19	293	29	0	103 (2019)
238.	White Wagtail	312	122	810	594	275	222	124	289	92	87	2927	293	27	810 (2017)
239.	alba wagtail sp.	138	92	339	372	243	614	107	383	193	353	2834	283	5	614 (2020)
240.	Pied Wagtail	8	15	13	19	12	5	7	9	4	13	105	11	0	19 (2018)
241.	Richard's Pipit	0	0	0	0	1	2	1	2	0	0	6	0.6	0	2 (2020)
242.	Tawny Pipit	0	0	0	0	1	1	0	0	0	0	2	0.2	0	1 (2019)
243.	Meadow Pipit	1737	2114	7403	6712	27484	14747	11625	4752	9118	1976	87668	8767	81	27484 (2019)
244.	Tree Pipit	31	67	81	160	277	446	128	266	173	150	1779	178	5	446 (2020)
245.	Red-throated Pipit	0	0	1	0	0	0	0	1	0	0	2	0.2	0	1 (2017)
246.	Water Pipit	2	3	0	0	2	0	1	6	1	2	17	1.7	0	6 (2022)
247.	Rock Pipit	4	18	16	5	3	3	2	16	2	5	74	7.4	0	18 (2016)
248.	Rock Pipit/Water Pipit	8	4	1	7	14	8	4	11	6	3	66	6.6	0	14 (2019)
249.	pipit sp.	0	2	1	0	0	0	0	0	0	0	3	0.3	0	2 (2016)
250.	Chaffinch	11965	4901	18338	1116	52507	12075	24804	6560	1404	1294	134964	13496	1044	52507 (2019)
	Species	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	Totals	Average	Present	Year Maximum
251.	Brambling	322	135	432	79	434	289	3542	590	382	168	6373	637	202	3542 (2021)
252.	Hawfinch	44	36	28	80	34	93	25	52	53	151	596	60	5	151 (2024)
253.	Bullfinch	2	0	3	7	7	0	1	1	3	1	25	2.5	0	7 (2018)
254.	Common Rosefinch	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2021)
255.	Greenfinch	353	192	202	339	320	214	98	114	52	49	1933	193	298	353 (2015)
256.	Linnet	306	355	1004	690	779	2239	643	461	481	369	7327	733	247	2239 (2020)
257.	Mealy Redpoll	0	0	0	0	0	0	0	0	0	1	1	0.1	0	1 (2024)
258.	Lesser Redpoll	1	6	5	4	1	0	2	0	4	0	23	2.3	0	6 (2016)
259.	redpoll sp.	2	11	64	33	42	10	100	13	78	187	540	54	1	187 (2024)
260.	Crossbill	192	139	705	27	304	248	284	89	255	4	2247	225	39	705 (2017)
261.	Goldfinch	137	104	190	161	285	266	126	156	192	138	1755	176	119	285 (2019)
262.	Serin	1	5	3	3	2	2	5	0	1	0	22	2.2	0	5 (2016)
263.	Siskin	3818	1265	771	258	10918	224	5157	321	68	425	23225	2323	124	10918 (2019)
264.	Lapland Bunting	2	2	2	2	3	10	1	1	0	0	23	2.3	0	10 (2020)
265.	Snow Bunting	3	2	1	16	1	0	0	0	0	0	23	2.3	0	16 (2018)
266.	Yellowhammer	1	0	0	1	2	1	2	2	0	1	10	1	0	2 (2019)
267.	Ortolan Bunting	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2020)
268.	Little Bunting	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2022)
269.	Reed Bunting	282	123	142	240	274	150	155	313	25	140	1844	184	10	313 (2022)
270.	bunting sp.	0	0	0	0	2	0	0	0	0	0	2	0.2	0	2 (2019)
271.	passerine sp.	0	0	0	0	0	2	0	1	0	0	3	0.3	0	2 (2020)
	Other species
1.	Harbour Porpoise	1	6	0	0	2	2	1	0	0	5	17	1.7	0	6 (2016)
2.	Grey seal	1	2	0	0	0	0	0	0	0	0	3	0.3	0	2 (2016)
3.	Common Seal	0	1	0	0	0	0	0	0	0	0	1	0.1	0	1 (2016)
4.	Common Noctule	1	0	0	0	0	0	0	0	0	0	1	0.1	0	1 (2015)
	Other species
1.	Small Tortoiseshell	0	0	1	0	0	0	0	1	0	0	2	0.2	0	1 (2017)
2.	Brimstone	0	0	3	1	4	4	0	0	1	1	14	1.4	0	4 (2019)
3.	European Peacock	0	0	1	2	0	0	0	0	1	1	5	0.5	0	2 (2018)
4.	Large White	0	2	0	0	6	1	0	0	0	0	9	0.9	0	6 (2019)
5.	Green-veined White	4	0	0	0	1	0	0	0	0	0	5	0.5	0	4 (2015)
6.	Small White	0	14	1	0	4	0	0	0	0	0	19	1.9	0	14 (2016)
7.	white sp. (butterfly)	0	22	0	0	3	1	0	0	0	0	26	2.6	0	22 (2016)
8.	Comma	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2022)
9.	Red Admiral	0	6	37	0	4	6	1	1	2	0	57	5.7	0	37 (2017)
10.	Painted Lady	0	0	0	0	45	0	0	0	0	0	45	4.5	10	45 (2019)
11.	Small Heath	0	0	0	0	2	0	0	0	0	0	2	0.2	0	2 (2019)
	Other species
1.	Bumblebee sp.	4	9	59	14	10	46	5	5	6	18	176	18	0	59 (2017)
	Species	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	Totals	Average	Present	Year Maximum
	Totals	100469	137968	241474	70936	264586	206689	292523	76537	101772	45752	1538706	153871	9972
	Observation hours	143:05	194:17	272:45	304:23	312:34	291:43	220:32	208:10	217:32	168:58	2,333:59	233:24

Trektellen

Totals Berkheide (Katwijk) 2015 - 2024