Totals Berkheide (Katwijk) 2011 - 2020

	Species	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	Totals	Average	Present	Year Maximum
1.	Fulvous Whistling Duck	0	0	0	0	10	0	0	0	0	0	10	1	0	10 (2015)
2.	Dark-bellied Brent Goose	2	25	21	28	118	166	79	239	149	174	1001	100	1	239 (2018)
3.	Canada Goose	22	19	16	130	137	31	144	199	376	358	1432	143	2	376 (2019)
4.	Barnacle Goose	1330	60	2260	1101	683	1234	2761	8796	4813	10434	33472	3347	0	10434 (2020)
5.	Lesser Canada Goose	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2019)
6.	Bar-headed Goose	0	0	0	0	0	0	0	0	0	2	2	0.2	0	2 (2020)
7.	Greylag Goose	125	282	836	562	647	678	809	1013	1585	1069	7606	761	4	1585 (2019)
8.	Anser sp.	0	0	18	188	19	171	121	0	0	0	517	52	0	188 (2014)
9.	goose sp.	0	0	300	0	120	1211	26	225	1172	334	3388	339	0	1211 (2016)
10.	Domestic Goose	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2016)
11.	Pink-footed Goose	0	0	139	0	78	197	11	31	590	190	1236	124	0	590 (2019)
12.	Tundra Bean Goose	1	0	0	0	57	13	28	0	0	4	103	10	0	57 (2015)
13.	Bean Goose sp.	0	0	0	0	0	3	0	0	0	0	3	0.3	0	3 (2016)
14.	Eurasian White-fronted Goose	0	0	845	4	284	155	606	390	656	378	3318	332	0	845 (2013)
15.	Mute Swan	1	41	37	37	52	163	100	72	184	215	902	90	8	215 (2020)
16.	Whooper Swan	0	0	6	0	4	0	0	6	0	2	18	1.8	0	6 (2013)
17.	Egyptian Goose	40	35	28	159	103	138	128	91	213	339	1274	127	5	339 (2020)
18.	Shelduck	19	42	23	54	95	252	255	435	744	384	2303	230	6	744 (2019)
19.	Ruddy Shelduck	0	0	0	0	0	1	15	0	12	2	30	3	0	15 (2017)
20.	Garganey	0	0	0	0	0	0	5	4	0	7	16	1.6	0	7 (2020)
21.	Shoveler	4	25	370	193	50	120	274	175	243	520	1974	197	0	520 (2020)
22.	Gadwall	16	14	46	20	38	41	99	52	78	105	509	51	0	105 (2020)
23.	Wigeon	0	17	86	44	47	337	100	1272	539	230	2672	267	37	1272 (2018)
24.	American Wigeon	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2018)
25.	Mallard	6	19	10	15	24	14	58	46	60	81	333	33	0	81 (2020)
26.	Pintail	0	0	10	0	21	81	314	23	21	45	515	52	0	314 (2017)
27.	Teal	0	0	133	5	1	634	31	81	78	51	1014	101	0	634 (2016)
28.	duck sp.	0	0	0	0	40	54	71	38	0	19	222	22	0	71 (2017)
29.	Red-crested Pochard	0	0	0	15	3	18	7	24	11	0	78	7.8	3	24 (2018)
30.	Pochard	0	2	0	11	6	26	48	29	25	7	154	15	0	48 (2017)
31.	Tufted Duck	1	11	8	11	7	19	35	14	6	45	157	16	0	45 (2020)
32.	Scaup	0	0	0	0	0	9	0	1	0	0	10	1	0	9 (2016)
33.	Aythya sp.	0	0	0	0	0	58	0	0	0	0	58	5.8	0	58 (2016)
34.	Eider	3	0	14	3	29	73	51	81	102	142	498	50	0	142 (2020)
35.	Velvet Scoter	0	0	0	0	1	3	5	5	0	2	16	1.6	0	5 (2017)
36.	Common Scoter	4	2	107	361	201	618	2210	1119	500	674	5796	580	65	2210 (2017)
37.	scoter sp.	0	0	0	0	0	2	9	0	0	0	11	1.1	0	9 (2017)
38.	Goldeneye	0	0	1	0	2	1	8	0	2	6	20	2	0	8 (2017)
39.	Smew	0	0	0	0	0	0	0	3	0	0	3	0.3	0	3 (2018)
40.	Goosander	0	0	2	0	3	3	8	28	21	14	79	7.9	0	28 (2018)
41.	Red-breasted Merganser	0	0	39	4	4	67	59	82	31	97	383	38	0	97 (2020)
42.	Swift	352	7345	374	1099	1445	1934	11043	6648	9961	16739	56940	5694	355	16739 (2020)
43.	Cuckoo	2	8	5	8	4	23	11	14	9	9	93	9.3	20	23 (2016)
44.	Stock Dove	64	35	191	189	86	137	152	185	215	246	1500	150	76	246 (2020)
45.	Woodpigeon	597	816	3690	814	2202	3163	1668	5163	1739	2989	22841	2284	402	5163 (2018)
46.	Turtle Dove	3	0	2	7	0	3	1	2	4	3	25	2.5	0	7 (2014)
47.	Collared Dove	83	114	43	101	83	100	118	161	121	144	1068	107	5	161 (2018)
48.	Crane	0	0	3	2	0	0	0	17	0	0	22	2.2	0	17 (2018)
49.	Great Crested Grebe	3	0	27	1	62	148	20	69	150	50	530	53	193	150 (2019)
50.	Oystercatcher	87	123	88	195	211	420	327	735	318	429	2933	293	8	735 (2018)
	Species	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	Totals	Average	Present	Year Maximum
51.	Avocet	0	2	6	5	0	18	10	27	1	86	155	16	0	86 (2020)
52.	Lapwing	30	84	2052	53	481	241	110	1154	90	94	4389	439	44	2052 (2013)
53.	Golden Plover	8	69	92	8	9	10	87	250	21	31	585	59	0	250 (2018)
54.	Grey Plover	3	14	19	3	1	29	139	14	16	15	253	25	0	139 (2017)
55.	Ringed Plover	0	30	16	15	8	20	44	103	200	59	495	50	0	200 (2019)
56.	Little Ringed Plover	4	2	4	13	7	15	18	27	15	22	127	13	8	27 (2018)
57.	Dotterel	0	4	0	4	0	1	5	1	22	2	39	3.9	0	22 (2019)
58.	Whimbrel	131	26	38	357	34	159	284	403	397	1486	3315	332	4	1486 (2020)
59.	Curlew	9	59	140	33	64	110	86	105	276	168	1050	105	1	276 (2019)
60.	Bar-tailed Godwit	17	2	18	10	1	41	62	22	13	36	222	22	0	62 (2017)
61.	Black-tailed Godwit	0	7	30	13	8	12	24	41	21	20	176	18	0	41 (2018)
62.	Icelandic Black-tailed Godwit	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2018)
63.	Turnstone	4	0	0	1	0	2	3	1	0	1	12	1.2	0	4 (2011)
64.	Knot	0	30	0	0	0	29	28	19	43	78	227	23	0	78 (2020)
65.	Ruff	7	27	16	9	26	12	67	68	0	58	290	29	0	68 (2018)
66.	wader sp.	8	0	0	22	6	33	82	50	18	137	356	36	0	137 (2020)
67.	Temminck's Stint	0	0	0	0	0	0	6	0	0	0	6	0.6	0	6 (2017)
68.	Sanderling	0	0	38	12	24	53	82	0	15	67	291	29	50	82 (2017)
69.	Dunlin	1	0	66	30	258	317	26	24	131	33	886	89	0	317 (2016)
70.	Purple Sandpiper	0	0	0	0	0	3	0	0	0	0	3	0.3	0	3 (2016)
71.	Little Stint	0	0	0	0	0	0	6	0	0	0	6	0.6	0	6 (2017)
72.	Calidris sp.	0	0	0	0	0	0	53	0	3	13	69	6.9	0	53 (2017)
73.	Woodcock	0	0	0	0	1	3	2	0	1	1	8	0.8	0	3 (2016)
74.	Jack Snipe	0	0	0	0	0	1	0	0	1	0	2	0.2	0	1 (2016)
75.	Snipe	15	1	28	34	48	19	39	58	54	60	356	36	1	60 (2020)
76.	Common Sandpiper	0	0	0	1	0	0	0	1	3	0	5	0.5	0	3 (2019)
77.	Green Sandpiper	83	20	28	125	25	14	91	53	119	210	768	77	0	210 (2020)
78.	Redshank	7	39	67	148	8	28	165	58	107	199	826	83	1	199 (2020)
79.	Wood Sandpiper	2	1	0	16	0	3	4	15	7	13	61	6.1	0	16 (2014)
80.	Spotted Redshank	4	0	8	18	1	1	7	6	8	3	56	5.6	0	18 (2014)
81.	Greenshank	50	29	13	127	4	36	151	29	49	66	554	55	2	151 (2017)
82.	Kittiwake	0	0	0	0	105	2	3	2	0	0	112	11	0	105 (2015)
83.	Black-headed Gull	97	1396	2133	793	1441	7439	3659	4060	2184	3657	26859	2686	41	7439 (2016)
84.	Little Gull	19	17	151	272	20	317	51	130	924	1911	3812	381	54	1911 (2020)
85.	Mediterranean Gull	2	5	2	9	10	5	13	58	23	150	277	28	0	150 (2020)
86.	Common Gull	8	5	280	689	122	1860	1380	520	317	1343	6524	652	79	1860 (2016)
87.	Great Black-backed Gull	30	1	12	31	290	109	98	24	42	107	744	74	141	290 (2015)
88.	Glaucous Gull	0	0	0	3	0	0	2	1	1	0	7	0.7	0	3 (2014)
89.	Iceland Gull	0	0	0	0	1	0	2	0	1	1	5	0.5	0	2 (2017)
90.	Herring Gull	95	46	375	100	3434	1527	2013	813	876	2121	11400	1140	1537	3434 (2015)
91.	Yellow-legged Gull	0	0	0	0	0	0	1	0	0	0	1	0.1	1	1 (2017)
92.	Lesser Black-backed Gull	483	345	1454	960	1708	3786	2192	3306	2902	8465	25601	2560	434	8465 (2020)
93.	Gull-billed Tern	0	0	0	0	0	0	2	2	0	2	6	0.6	0	2 (2017)
94.	Caspian Tern	0	0	1	0	0	0	0	0	0	0	1	0.1	0	1 (2013)
95.	Sandwich Tern	43	7	9	87	32	200	705	321	667	994	3065	307	45	994 (2020)
96.	Little Tern	3	0	0	0	1	50	33	21	18	78	204	20	0	78 (2020)
97.	Common Tern	24	50	88	144	230	558	344	349	585	7741	10113	1011	42	7741 (2020)
98.	Arctic Tern	0	0	0	0	0	11	0	4	30	32	77	7.7	0	32 (2020)
99.	Common/Arctic Tern	21	9	11	0	0	13	895	0	112	403	1464	146	10	895 (2017)
100.	Black Tern	2	1	0	15	1	11	42	0	24	237	333	33	0	237 (2020)
	Species	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	Totals	Average	Present	Year Maximum
101.	Great Skua	0	0	0	0	2	0	1	0	0	0	3	0.3	0	2 (2015)
102.	Arctic Skua	1	0	0	0	0	0	0	0	3	1	5	0.5	0	3 (2019)
103.	skua sp.	0	0	0	1	0	0	0	0	0	0	1	0.1	0	1 (2014)
104.	Guillemot	0	0	0	0	0	0	1	0	0	0	1	0.1	1	1 (2017)
105.	Razorbill	0	0	0	0	1	0	0	1	0	0	2	0.2	0	1 (2015)
106.	Razorbill/Guillemot	1	0	0	0	22	19	26	196	316	21	601	60	2	316 (2019)
107.	Red-throated Diver	0	0	4	2	27	475	224	135	142	110	1119	112	22	475 (2016)
108.	Black-throated Diver	0	0	0	0	2	2	0	2	0	0	6	0.6	1	2 (2015)
109.	Great Northern Diver	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2016)
110.	diver sp.	0	0	5	1	0	2	1	2	0	2	13	1.3	0	5 (2013)
111.	Leach's Petrel	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2015)
112.	Fulmar	0	0	0	0	0	1	0	0	0	1	2	0.2	0	1 (2016)
113.	Black Stork	0	0	0	0	0	4	3	0	0	0	7	0.7	0	4 (2016)
114.	White Stork	2	9	1	6	2	5	12	5	13	5	60	6	1	13 (2019)
115.	Gannet	1	5	57	18	146	110	41	130	23	51	582	58	28	146 (2015)
116.	Cormorant	608	595	1735	1515	2613	2102	4033	3938	7471	6846	31456	3146	601	7471 (2019)
117.	Cormorant (p. c. carbo)	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2018)
118.	Spoonbill	70	23	118	221	64	105	346	461	378	399	2185	219	1	461 (2018)
119.	Bittern	1	0	0	9	0	0	0	0	0	2	12	1.2	2	9 (2014)
120.	Night Heron	0	0	0	0	0	0	2	0	0	0	2	0.2	0	2 (2017)
121.	Cattle Egret	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2019)
122.	Grey Heron	48	50	139	190	83	168	249	412	369	458	2166	217	6	458 (2020)
123.	Purple Heron	6	1	1	0	3	6	6	18	12	13	66	6.6	0	18 (2018)
124.	Great White Egret	4	5	9	16	6	13	6	32	46	51	188	19	2	51 (2020)
125.	heron sp.	0	0	0	0	0	1	1	0	0	1	3	0.3	0	1 (2016)
126.	Little Egret	0	0	1	1	2	0	3	1	4	2	14	1.4	0	4 (2019)
127.	Egretta sp.	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2019)
128.	Osprey	4	5	2	4	2	10	2	7	7	8	51	5.1	1	10 (2016)
129.	Honey Buzzard	0	4	0	14	0	2	5	4	0	2	31	3.1	0	14 (2014)
130.	Lesser Spotted Eagle	1	0	0	0	0	0	0	0	0	0	1	0.1	0	1 (2011)
131.	Booted Eagle	0	0	0	0	0	0	0	0	0	2	2	0.2	0	2 (2020)
132.	Sparrowhawk	22	23	39	16	26	41	30	33	59	40	329	33	6	59 (2019)
133.	Goshawk	2	3	4	3	3	4	10	4	4	3	40	4	12	10 (2017)
134.	Marsh Harrier	45	22	38	80	10	43	101	102	93	133	667	67	3	133 (2020)
135.	Hen Harrier	4	3	3	4	2	5	2	2	7	11	43	4.3	1	11 (2020)
136.	Pallid Harrier	0	0	0	0	0	1	1	1	0	2	5	0.5	0	2 (2020)
137.	Montagu's Harrier	2	0	0	0	0	1	0	0	1	0	4	0.4	0	2 (2011)
138.	Montagu's/Pallid Harrier	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2017)
139.	Red Kite	0	1	0	0	0	1	1	3	0	1	7	0.7	0	3 (2018)
140.	Black Kite	0	1	4	4	1	2	1	1	4	3	21	2.1	0	4 (2013)
141.	White-tailed Eagle	0	0	1	0	1	1	0	2	1	3	9	0.9	0	3 (2020)
142.	Rough-legged Buzzard	4	0	1	0	0	0	0	0	0	0	5	0.5	0	4 (2011)
143.	Common Buzzard	21	44	21	17	19	39	7	11	20	22	221	22	61	44 (2012)
144.	Short-eared Owl	1	0	0	4	0	3	0	2	0	3	13	1.3	0	4 (2014)
145.	Hoopoe	0	0	0	0	1	1	0	0	1	0	3	0.3	0	1 (2015)
146.	Kingfisher	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2016)
147.	European Bee-eater	0	0	0	1	0	2	3	3	1	0	10	1	0	3 (2017)
148.	Lesser Spotted Woodpecker	0	0	0	0	0	0	2	0	2	1	5	0.5	0	2 (2017)
149.	Great Spotted Woodpecker	12	29	27	66	33	35	133	57	92	53	537	54	37	133 (2017)
150.	Green Woodpecker	0	0	1	0	0	0	0	0	0	1	2	0.2	0	1 (2013)
	Species	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	Totals	Average	Present	Year Maximum
151.	Kestrel	7	10	3	25	17	38	35	23	41	47	246	25	20	47 (2020)
152.	Red-footed Falcon	0	0	0	0	0	7	3	0	0	1	11	1.1	1	7 (2016)
153.	Merlin	6	3	3	10	3	5	4	7	12	19	72	7.2	0	19 (2020)
154.	Hobby	5	10	4	3	2	9	5	8	13	9	68	6.8	3	13 (2019)
155.	Peregrine	0	1	4	6	1	7	17	15	11	8	70	7	3	17 (2017)
156.	falcon sp.	0	0	0	0	1	0	0	1	0	0	2	0.2	0	1 (2015)
157.	Rose-ringed Parakeet	0	3	0	15	0	0	0	0	5	4	27	2.7	0	15 (2014)
158.	Red-backed Shrike	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2015)
159.	Great Grey Shrike	1	0	0	0	0	1	0	0	1	0	3	0.3	0	1 (2011)
160.	Golden Oriole	1	4	1	9	1	5	6	13	4	11	55	5.5	1	13 (2018)
161.	Jay	13	11	28	111	15	31	13	4	203	15	444	44	13	203 (2019)
162.	Magpie	4	12	18	24	24	27	6	23	43	111	292	29	43	111 (2020)
163.	Jackdaw	239	281	1648	456	337	1000	779	694	1947	601	7982	798	10	1947 (2019)
164.	Rook	1	2	4	11	2	3	2	17	7	4	53	5.3	0	17 (2018)
165.	Carrion Crow	53	30	50	153	69	77	99	236	121	152	1040	104	100	236 (2018)
166.	Hooded Crow	0	0	1	0	0	0	0	2	0	0	3	0.3	0	2 (2018)
167.	Raven	0	2	0	0	2	2	4	1	3	2	16	1.6	0	4 (2017)
168.	Waxwing	0	0	0	0	1	2	0	0	0	0	3	0.3	0	2 (2016)
169.	Coal Tit	0	0	4	0	7	1	13	1	3	4	33	3.3	2	13 (2017)
170.	Blue Tit	2	22	12	30	79	31	143	11	5542	52	5924	592	2	5542 (2019)
171.	Great Tit	4	6	27	21	37	49	85	51	104	37	421	42	4	104 (2019)
172.	Bearded Tit	0	0	12	0	0	0	0	0	0	0	12	1.2	0	12 (2013)
173.	Wood Lark	8	0	83	46	48	54	45	74	119	12	489	49	63	119 (2019)
174.	Skylark	53	8	1749	726	1242	291	144	391	1754	81	6439	644	1	1754 (2019)
175.	Shore Lark	0	0	0	0	0	0	0	0	0	2	2	0.2	0	2 (2020)
176.	Short-toed Lark	0	0	1	0	0	0	0	0	0	0	1	0.1	0	1 (2013)
177.	Sand Martin	278	141	67	201	97	332	406	146	918	935	3521	352	4	935 (2020)
178.	Swallow	1394	2399	1150	1816	1338	3764	3490	3610	2903	2818	24682	2468	96	3764 (2016)
179.	House Martin	53	1144	202	308	199	498	1022	573	569	372	4940	494	225	1144 (2012)
180.	Red-rumped Swallow	1	2	1	0	0	1	0	0	0	1	6	0.6	0	2 (2012)
181.	Long-tailed Tit	0	13	37	0	54	20	12	12	12	1	161	16	0	54 (2015)
182.	Wood Warbler	1	0	0	0	0	0	1	0	1	0	3	0.3	0	1 (2011)
183.	Willow Warbler	1	1	1	1	0	1	2	1	4	8	20	2	5	8 (2020)
184.	Chiffchaff	2	2	15	27	9	21	16	32	13	24	161	16	9	32 (2018)
185.	Chiffchaff/Willow Warbler	0	0	14	5	0	0	1	5	4	17	46	4.6	0	17 (2020)
186.	Phylloscopus sp.	0	0	0	0	0	0	0	0	0	1	1	0.1	0	1 (2020)
187.	Blackcap	0	0	1	13	0	3	0	0	6	7	30	3	1	13 (2014)
188.	Garden Warbler	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2018)
189.	Lesser Whitethroat	0	0	0	0	0	0	0	0	1	1	2	0.2	0	1 (2019)
190.	Whitethroat	0	0	0	0	0	0	0	0	0	1	1	0.1	0	1 (2020)
191.	Firecrest	0	0	4	7	0	1	0	0	6	1	19	1.9	0	7 (2014)
192.	Goldcrest	0	1	6	3	55	77	9	2	53	3	209	21	11	77 (2016)
193.	Nuthatch	0	0	0	0	0	0	1	0	3	1	5	0.5	0	3 (2019)
194.	Short-toed Tree Creeper	0	1	0	0	0	0	0	0	0	0	1	0.1	0	1 (2012)
195.	Crested Myna	0	0	0	0	0	0	0	0	0	1	1	0.1	0	1 (2020)
196.	Starling	32070	1307	31189	21380	50637	80364	162790	5744	78716	91072	555269	55527	1461	162790 (2017)
197.	Song Thrush	44	13	349	847	81	704	279	732	2790	615	6454	645	17	2790 (2019)
198.	Mistle Thrush	40	27	232	43	45	62	80	158	131	36	854	85	18	232 (2013)
199.	Redwing	34	2	2072	59	1127	1274	45	797	5269	306	10985	1099	1	5269 (2019)
200.	Blackbird	6	1	63	15	52	67	13	17	42	8	284	28	18	67 (2016)
	Species	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	Totals	Average	Present	Year Maximum
201.	Fieldfare	8	0	69	297	6506	5900	21	31	22901	123	35856	3586	48	22901 (2019)
202.	Ring Ouzel	30	5	25	63	8	16	22	145	296	262	872	87	40	296 (2019)
203.	thrush sp.	0	0	0	6	0	5	5	0	0	0	16	1.6	0	6 (2014)
204.	Spotted Flycatcher	0	2	2	36	2	58	16	56	14	39	225	23	9	58 (2016)
205.	Pied Flycatcher	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2019)
206.	Black Redstart	0	0	1	0	0	0	0	1	2	1	5	0.5	0	2 (2019)
207.	Redstart	0	0	0	2	1	0	0	0	1	0	4	0.4	1	2 (2014)
208.	Rock Thrush	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2016)
209.	Whinchat	0	0	0	0	0	3	1	0	2	0	6	0.6	0	3 (2016)
210.	Stonechat	0	0	0	0	1	0	1	0	0	0	2	0.2	0	1 (2015)
211.	Wheatear	3	0	3	13	2	15	3	15	37	40	131	13	3	40 (2020)
212.	Tree Sparrow	6	29	44	70	25	28	21	14	55	5	297	30	5	70 (2014)
213.	House Sparrow	0	0	12	4	21	23	28	22	43	57	210	21	22	57 (2020)
214.	Dunnock	18	20	19	58	43	38	79	44	106	27	452	45	27	106 (2019)
215.	Blue-headed Wagtail	51	77	60	237	18	152	39	288	336	419	1677	168	11	419 (2020)
216.	Yellow Wagtail (flavissima)	5	5	1	17	2	8	9	7	12	35	101	10	2	35 (2020)
217.	Grey-headed Wagtail	3	5	13	3	0	57	28	80	33	20	242	24	0	80 (2018)
218.	Yellow wagtail sp.	492	171	100	242	103	224	751	598	824	1304	4809	481	6	1304 (2020)
219.	Citrine Wagtail	0	0	0	1	0	0	1	1	1	0	4	0.4	0	1 (2014)
220.	Grey Wagtail	10	1	21	33	14	12	37	14	103	34	279	28	0	103 (2019)
221.	White Wagtail	48	63	229	278	312	122	810	594	275	222	2953	295	20	810 (2017)
222.	alba wagtail sp.	46	39	270	382	138	92	339	372	243	614	2535	254	1	614 (2020)
223.	Pied Wagtail	1	5	22	20	8	15	13	19	12	5	120	12	0	22 (2013)
224.	Richard's Pipit	1	0	0	0	0	0	0	0	1	2	4	0.4	0	2 (2020)
225.	Tawny Pipit	2	2	0	1	0	0	0	0	1	1	7	0.7	0	2 (2011)
226.	Meadow Pipit	7671	929	2135	20227	1737	2114	7403	6712	27484	14747	91159	9116	83	27484 (2019)
227.	Tree Pipit	184	51	18	166	31	67	81	160	277	446	1481	148	5	446 (2020)
228.	Tree Pipit/Olive-backed Pipit	0	0	1	0	0	0	0	0	0	0	1	0.1	0	1 (2013)
229.	Red-throated Pipit	1	0	1	0	0	0	1	0	0	0	3	0.3	0	1 (2011)
230.	Water Pipit	0	0	0	0	2	3	0	0	2	0	7	0.7	0	3 (2016)
231.	Rock Pipit	1	0	4	1	4	18	16	5	3	3	55	5.5	0	18 (2016)
232.	Rock Pipit/Water Pipit	0	2	13	4	8	4	1	7	14	8	61	6.1	0	14 (2019)
233.	pipit sp.	1	0	0	0	0	2	1	0	0	0	4	0.4	0	2 (2016)
234.	Chaffinch	1833	113	24338	10831	11965	4901	18338	1116	52507	12075	138017	13802	487	52507 (2019)
235.	Brambling	56	17	158	93	322	135	432	79	434	289	2015	202	232	434 (2019)
236.	Hawfinch	3	111	28	39	44	36	28	80	34	93	496	50	10	111 (2012)
237.	Bullfinch	0	0	3	0	2	0	3	7	7	0	22	2.2	1	7 (2018)
238.	Greenfinch	19	36	118	93	353	192	202	339	320	214	1886	189	296	353 (2015)
239.	Linnet	99	168	165	842	306	355	1004	690	779	2239	6647	665	202	2239 (2020)
240.	Lesser Redpoll	15	2	1	15	1	6	5	4	1	0	50	5	0	15 (2011)
241.	redpoll sp.	94	18	11	113	2	11	64	33	42	10	398	40	5	113 (2014)
242.	Crossbill	0	86	91	28	192	139	705	27	304	248	1820	182	16	705 (2017)
243.	crossbill sp.	0	0	2	0	0	0	0	0	0	0	2	0.2	0	2 (2013)
244.	Goldfinch	28	50	59	123	137	104	190	161	285	266	1403	140	85	285 (2019)
245.	Serin	1	2	0	0	1	5	3	3	2	2	19	1.9	0	5 (2016)
246.	Siskin	419	55	212	280	3818	1265	771	258	10918	224	18220	1822	41	10918 (2019)
247.	Lapland Bunting	0	1	2	4	2	2	2	2	3	10	28	2.8	0	10 (2020)
248.	Snow Bunting	1	0	2	6	3	2	1	16	1	0	32	3.2	0	16 (2018)
249.	Yellowhammer	0	0	0	0	1	0	0	1	2	1	5	0.5	0	2 (2019)
250.	Ortolan Bunting	0	0	1	0	0	0	0	0	0	1	2	0.2	0	1 (2013)
	Species	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	Totals	Average	Present	Year Maximum
251.	Reed Bunting	25	12	200	105	282	123	142	240	274	150	1553	155	9	282 (2015)
252.	bunting sp.	0	0	0	0	0	0	0	0	2	0	2	0.2	0	2 (2019)
253.	passerine sp.	0	0	1	0	0	0	0	0	0	2	3	0.3	0	2 (2020)
	Other species
1.	Harbour Porpoise	1	0	3	0	1	6	0	0	2	2	15	1.5	0	6 (2016)
2.	Grey seal	0	0	0	0	1	2	0	0	0	0	3	0.3	0	2 (2016)
3.	Common Seal	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2016)
4.	Common Noctule	4	0	2	0	1	0	0	0	0	0	7	0.7	0	4 (2011)
	Other species
1.	Small Tortoiseshell	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2017)
2.	Brimstone	0	0	0	0	0	0	3	1	4	4	12	1.2	0	4 (2019)
3.	European Peacock	0	0	0	0	0	0	1	2	0	0	3	0.3	0	2 (2018)
4.	Speckled Wood	2	0	0	0	0	0	0	0	0	0	2	0.2	0	2 (2011)
5.	Large White	0	0	0	0	0	2	0	0	6	1	9	0.9	0	6 (2019)
6.	Green-veined White	0	0	0	0	4	0	0	0	1	0	5	0.5	0	4 (2015)
7.	Small White	0	0	0	0	0	14	1	0	4	0	19	1.9	0	14 (2016)
8.	white sp. (butterfly)	0	0	0	0	0	22	0	0	3	1	26	2.6	0	22 (2016)
9.	Red Admiral	1	0	4	1	0	6	37	0	4	6	59	5.9	0	37 (2017)
10.	Painted Lady	0	0	0	0	0	0	0	0	45	0	45	4.5	10	45 (2019)
11.	Small Heath	0	0	0	0	0	0	0	0	2	0	2	0.2	0	2 (2019)
	Other species
1.	Bumblebee sp.	0	0	0	66	4	9	59	14	10	46	208	21	0	66 (2014)
	Species	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	Totals	Average	Present	Year Maximum
	Totals	50339	19722	86703	72885	100469	137968	241474	70936	264586	206689	1251771	125177	8282
	Observation hours	68:35	78:20	113:10	168:30	143:05	194:17	272:45	304:23	312:34	291:43	1,947:22	194:44

Trektellen

Totals Berkheide (Katwijk) 2011 - 2020