Totals Bichterweerd 2012 - 2021

	Species	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	Totals	Average	Present	Year Maximum
1.	Canada Goose	40	0	0	0	0	0	0	0	0	0	40	4	0	40 (2012)
2.	Barnacle Goose	22	0	0	0	0	4	59	14	110	2	211	21	0	110 (2020)
3.	Lesser Canada Goose	0	0	1	0	0	0	0	0	0	0	1	0.1	0	1 (2014)
4.	Bar-headed Goose	1	0	0	0	1	0	0	0	0	0	2	0.2	0	1 (2012)
5.	Snow Goose	0	0	1	0	0	1	0	0	0	0	2	0.2	0	1 (2014)
6.	Greylag Goose	97	43	262	188	125	1005	277	267	142	937	3343	334	2170	1005 (2017)
7.	Anser sp.	282	12	519	1400	5139	75	40	283	1891	223	9864	986	0	5139 (2016)
8.	goose sp.	0	387	104	12	0	10	0	0	0	0	513	51	0	387 (2013)
9.	Pink-footed Goose	14	0	0	0	0	0	0	0	0	4	18	1.8	0	14 (2012)
10.	Tundra Bean Goose	2	95	393	99	60	36	89	67	629	106	1576	158	106	629 (2020)
11.	Bean Goose sp.	0	0	1	0	0	11	0	0	0	0	12	1.2	0	11 (2017)
12.	Eurasian White-fronted Goose	780	5772	5278	3478	2293	1345	4174	2473	10497	1130	37220	3722	11386	10497 (2020)
13.	Black Swan	1	0	0	3	4	0	8	0	0	0	16	1.6	0	8 (2018)
14.	Mute Swan	0	2	2	0	0	1	8	10	2	1	26	2.6	0	10 (2019)
15.	Bewick's Swan	0	0	2	0	0	0	0	0	0	0	2	0.2	0	2 (2014)
16.	Egyptian Goose	0	0	0	0	507	0	100	386	36	45	1074	107	100	507 (2016)
17.	Shelduck	3	4	0	0	4	0	0	9	1	0	21	2.1	45	9 (2019)
18.	Ruddy Shelduck	2	0	20	5	0	20	8	0	0	19	74	7.4	2	20 (2014)
19.	Garganey	0	0	0	7	0	2	0	0	0	0	9	0.9	0	7 (2015)
20.	Shoveler	44	131	114	332	181	60	20	18	3	28	931	93	287	332 (2015)
21.	Gadwall	0	0	0	2	235	11	0	0	0	25	273	27	0	235 (2016)
22.	Wigeon	53	293	64	5	1	111	62	30	121	0	740	74	258	293 (2013)
23.	Mallard	89	225	115	134	50	107	0	0	0	11	731	73	0	225 (2013)
24.	Pintail	13	138	66	39	16	101	23	0	6	3	405	41	50	138 (2013)
25.	Teal	7	8	0	0	0	0	1	37	0	0	53	5.3	50	37 (2019)
26.	duck sp.	1	0	0	6	55	0	10	0	0	0	72	7.2	0	55 (2016)
27.	Red-crested Pochard	0	0	0	0	2	0	0	0	0	0	2	0.2	0	2 (2016)
28.	Pochard	1	0	0	28	0	0	16	0	0	0	45	4.5	0	28 (2015)
29.	Tufted Duck	0	0	4	0	0	121	0	0	0	0	125	13	0	121 (2017)
30.	Common Scoter	0	0	0	0	6	0	0	0	0	0	6	0.6	0	6 (2016)
31.	Goldeneye	4	1	17	0	0	3	0	2	0	0	27	2.7	5	17 (2014)
32.	Goosander	0	0	0	1	2	4	0	1	0	1	9	0.9	3	4 (2017)
33.	Red-breasted Merganser	0	0	0	2	3	0	0	0	0	0	5	0.5	0	3 (2016)
34.	Swift	776	546	1057	133	1186	1141	83	1310	2	34	6268	627	150	1310 (2019)
35.	Cuckoo	1	2	11	0	7	2	0	6	0	0	29	2.9	2	11 (2014)
36.	Stock Dove	99	273	172	39	72	923	117	162	163	166	2186	219	138	923 (2017)
37.	Woodpigeon	73115	92087	104375	24860	22102	23859	14067	51246	32368	32418	470497	47050	2300	104375 (2014)
38.	Turtle Dove	8	6	21	7	18	8	1	4	0	1	74	7.4	18	21 (2014)
39.	Collared Dove	3	3	4	0	6	1	5	1	0	1	24	2.4	0	6 (2016)
40.	Crane	317	2186	5974	589	2	4402	2	48	2	4423	17945	1795	0	5974 (2014)
41.	Great Crested Grebe	0	0	0	0	0	0	0	1	10	0	11	1.1	0	10 (2020)
42.	Black-necked Grebe	6	0	0	0	0	0	0	0	0	0	6	0.6	0	6 (2012)
43.	Oystercatcher	0	0	4	0	2	0	0	0	0	0	6	0.6	0	4 (2014)
44.	Avocet	6	15	25	3	1	0	0	0	0	0	50	5	0	25 (2014)
45.	Lapwing	6670	10514	13876	5469	1565	3769	2933	4650	2239	2066	53751	5375	1327	13876 (2014)
46.	Golden Plover	4	15	25	96	44	4	25	3	1	39	256	26	2	96 (2015)
47.	Grey Plover	5	2	5	2	4	1	4	2	2	3	30	3	0	5 (2012)
48.	Ringed Plover	17	109	47	19	84	18	0	23	22	0	339	34	19	109 (2013)
49.	Little Ringed Plover	14	18	6	16	9	7	3	1	0	1	75	7.5	27	18 (2013)
50.	Kentish Plover	1	1	0	0	0	0	0	0	0	0	2	0.2	0	1 (2012)
	Species	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	Totals	Average	Present	Year Maximum
51.	Dotterel	0	0	0	0	3	1	0	0	0	0	4	0.4	0	3 (2016)
52.	Whimbrel	7	52	26	12	12	5	0	1	0	1	116	12	0	52 (2013)
53.	Curlew	6	34	15	4	6	8	1	4	2	6	86	8.6	2	34 (2013)
54.	Numenius sp.	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2017)
55.	Bar-tailed Godwit	0	2	3	1	0	1	0	0	0	2	9	0.9	0	3 (2014)
56.	Black-tailed Godwit	1	8	14	8	5	3	0	0	0	0	39	3.9	0	14 (2014)
57.	Turnstone	0	0	0	2	2	1	0	0	2	0	7	0.7	0	2 (2015)
58.	Knot	1	3	2	3	3	0	0	0	0	0	12	1.2	0	3 (2013)
59.	Ruff	20	95	25	53	18	53	20	50	2	0	336	34	16	95 (2013)
60.	Broad-billed Sandpiper	0	1	0	0	0	0	0	0	0	0	1	0.1	0	1 (2013)
61.	wader sp.	4	72	24	34	6	20	2	31	0	4	197	20	0	72 (2013)
62.	Curlew Sandpiper	2	49	2	1	14	0	0	2	0	0	70	7	0	49 (2013)
63.	Temminck's Stint	5	10	8	3	5	0	4	5	0	0	40	4	4	10 (2013)
64.	Sanderling	0	2	0	0	0	1	0	0	0	0	3	0.3	0	2 (2013)
65.	Dunlin	39	62	26	19	13	40	3	6	5	5	218	22	23	62 (2013)
66.	Little Stint	1	7	8	1	2	3	0	0	0	0	22	2.2	0	8 (2014)
67.	White-rumped Sandpiper	0	0	0	0	0	10	0	0	0	0	10	1	0	10 (2017)
68.	Calidris sp.	0	1	1	0	27	10	0	0	0	18	57	5.7	0	27 (2016)
69.	Jack Snipe	2	0	2	0	1	0	0	0	0	0	5	0.5	0	2 (2012)
70.	Snipe	36	312	377	112	53	20	30	17	12	26	995	100	40	377 (2014)
71.	Red-necked Phalarope	0	0	2	0	0	0	0	0	0	0	2	0.2	0	2 (2014)
72.	Common Sandpiper	9	4	3	0	0	0	0	2	0	0	18	1.8	2	9 (2012)
73.	Green Sandpiper	17	40	47	24	8	13	29	12	6	4	200	20	10	47 (2014)
74.	Redshank	29	105	67	3	21	5	2	8	0	1	241	24	3	105 (2013)
75.	Wood Sandpiper	10	50	20	33	10	0	1	3	1	3	131	13	6	50 (2013)
76.	Spotted Redshank	5	19	21	11	6	3	7	1	1	3	77	7.7	0	21 (2014)
77.	Greenshank	80	220	137	90	60	71	28	71	26	18	801	80	31	220 (2013)
78.	Black-headed Gull	0	1	0	0	0	0	25	312	0	0	338	34	18	312 (2019)
79.	Little Gull	5	173	29	55	38	19	0	7	0	0	326	33	8	173 (2013)
80.	Mediterranean Gull	10	8	1	9	18	3	0	1	0	3	53	5.3	1	18 (2016)
81.	Common Gull	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2019)
82.	Herring Gull	0	0	2	0	0	0	7	1	1	0	11	1.1	0	7 (2018)
83.	Caspian Gull	1	0	0	0	0	2	0	0	0	0	3	0.3	0	2 (2017)
84.	Yellow-legged Gull	0	0	0	0	0	4	0	0	0	0	4	0.4	0	4 (2017)
85.	Lesser Black-backed Gull	414	105	115	0	0	47	2	40	2	2	727	73	12	414 (2012)
86.	Gull-billed Tern	0	1	0	0	0	0	2	0	0	0	3	0.3	0	2 (2018)
87.	Caspian Tern	4	1	0	1	0	3	0	0	2	1	12	1.2	0	4 (2012)
88.	Sandwich Tern	0	0	1	2	2	0	0	0	0	0	5	0.5	0	2 (2015)
89.	Common Tern	38	42	52	11	16	62	15	34	0	0	270	27	38	62 (2017)
90.	Arctic Tern	0	1	1	0	0	0	0	3	1	0	6	0.6	0	3 (2019)
91.	Whiskered Tern	2	0	1	0	0	0	0	0	0	0	3	0.3	0	2 (2012)
92.	White-winged Black Tern	0	0	1	0	2	0	0	0	0	0	3	0.3	0	2 (2016)
93.	Black Tern	27	18	40	25	131	23	0	49	2	1	316	32	0	131 (2016)
94.	diver sp.	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2017)
95.	Black Stork	1	0	1	0	1	1	0	0	1	7	12	1.2	0	7 (2021)
96.	White Stork	130	23	171	42	107	14	4	120	92	200	903	90	0	200 (2021)
97.	Cormorant	5714	6669	3797	2625	2468	3274	2496	2279	2646	2396	34364	3436	5250	6669 (2013)
98.	Glossy Ibis	0	0	1	0	0	0	0	0	0	0	1	0.1	0	1 (2014)
99.	Spoonbill	0	5	1	9	2	10	3	24	10	49	113	11	3	49 (2021)
100.	Night Heron	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2016)
	Species	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	Totals	Average	Present	Year Maximum
101.	Cattle Egret	0	0	0	0	0	0	0	0	0	3	3	0.3	0	3 (2021)
102.	Grey Heron	154	244	147	158	104	82	108	177	26	53	1253	125	77	244 (2013)
103.	Purple Heron	0	0	0	0	0	0	0	1	0	1	2	0.2	0	1 (2019)
104.	Great White Egret	131	166	227	177	90	150	160	217	68	165	1551	155	50	227 (2014)
105.	Little Egret	1	0	1	3	10	1	0	0	1	5	22	2.2	3	10 (2016)
106.	Osprey	22	38	27	14	21	26	8	18	21	10	205	21	2	38 (2013)
107.	Honey Buzzard	4	751	55	38	9	10	1	13	7	5	893	89	0	751 (2013)
108.	Short-toed Eagle	0	0	1	0	0	0	0	0	0	0	1	0.1	0	1 (2014)
109.	eagle sp.	0	0	1	0	0	0	0	0	0	0	1	0.1	0	1 (2014)
110.	Sparrowhawk	242	216	128	135	104	118	44	99	109	123	1318	132	26	242 (2012)
111.	Goshawk	1	1	3	4	3	5	2	1	2	0	22	2.2	2	5 (2017)
112.	Marsh Harrier	36	58	81	56	36	42	14	37	31	54	445	45	5	81 (2014)
113.	Hen Harrier	4	10	11	3	4	2	5	6	2	6	53	5.3	0	11 (2014)
114.	Pallid Harrier	0	0	1	0	0	0	0	0	0	0	1	0.1	0	1 (2014)
115.	Montagu's Harrier	1	2	0	0	2	1	0	1	0	0	7	0.7	0	2 (2013)
116.	harrier sp.	0	1	3	0	0	0	0	1	0	0	5	0.5	0	3 (2014)
117.	Montagu's/Pallid Harrier	0	0	0	0	0	0	0	0	0	1	1	0.1	0	1 (2021)
118.	Red Kite	22	13	18	12	10	27	16	36	12	18	184	18	0	36 (2019)
119.	Black Kite	5	8	20	23	13	10	5	11	0	2	97	9.7	2	23 (2015)
120.	White-tailed Eagle	1	1	0	1	0	0	0	1	2	2	8	0.8	0	2 (2020)
121.	Rough-legged Buzzard	0	0	0	1	0	0	0	0	1	0	2	0.2	0	1 (2015)
122.	Common Buzzard	781	343	245	332	197	385	56	501	359	292	3491	349	236	781 (2012)
123.	Short-eared Owl	0	0	0	2	0	1	0	0	2	0	5	0.5	0	2 (2015)
124.	Asio sp.	1	0	0	0	0	0	0	0	0	0	1	0.1	0	1 (2012)
125.	European Bee-eater	0	1	0	1	1	1	0	0	0	0	4	0.4	0	1 (2013)
126.	Great Spotted Woodpecker	28	17	20	19	8	17	18	13	7	11	158	16	8	28 (2012)
127.	Black Woodpecker	3	0	0	1	0	0	0	0	0	0	4	0.4	0	3 (2012)
128.	Green Woodpecker	0	0	0	3	0	1	4	0	0	0	8	0.8	1	4 (2018)
129.	Kestrel	14	18	70	28	46	34	41	50	22	7	330	33	47	70 (2014)
130.	Red-footed Falcon	0	0	0	1	2	0	0	0	0	0	3	0.3	0	2 (2016)
131.	Merlin	21	19	17	18	19	3	5	2	4	17	125	13	0	21 (2012)
132.	Hobby	21	13	2	10	8	17	4	6	8	19	108	11	7	21 (2012)
133.	Peregrine	7	12	6	2	8	17	5	10	13	6	86	8.6	11	17 (2017)
134.	falcon sp.	1	0	0	0	5	0	1	2	0	0	9	0.9	0	5 (2016)
135.	Great Grey Shrike	1	0	0	1	1	0	0	0	0	0	3	0.3	0	1 (2012)
136.	Golden Oriole	1	2	2	1	8	1	0	2	0	0	17	1.7	2	8 (2016)
137.	Jay	414	80	135	17	6	26	11	1687	10	945	3331	333	17	1687 (2019)
138.	Magpie	19	16	8	7	12	26	4	14	17	15	138	14	8	26 (2017)
139.	Jackdaw	603	816	631	144	339	155	133	596	4	56	3477	348	0	816 (2013)
140.	Rook	286	188	850	449	339	355	406	310	244	89	3516	352	17	850 (2014)
141.	Carrion Crow	9	1	26	52	0	13	14	113	16	62	306	31	0	113 (2019)
142.	Blue Tit	169	29	15	64	10	53	33	50	0	23	446	45	0	169 (2012)
143.	Great Tit	28	2	22	9	2	7	3	11	1	4	89	8.9	0	28 (2012)
144.	Parus (tit) sp.	0	0	0	10	0	0	0	0	0	0	10	1	0	10 (2015)
145.	Penduline Tit	1	2	2	3	0	0	0	0	0	0	8	0.8	0	3 (2015)
146.	Bearded Tit	0	1	0	0	0	0	0	0	0	0	1	0.1	0	1 (2013)
147.	Wood Lark	116	65	35	62	11	29	40	71	152	29	610	61	1	152 (2020)
148.	Skylark	23532	20336	26036	8860	7452	5829	10785	10305	8252	6200	127587	12759	1202	26036 (2014)
149.	Shore Lark	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2020)
150.	Sand Martin	177	449	167	40	21	134	26	24	62	10	1110	111	75	449 (2013)
	Species	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	Totals	Average	Present	Year Maximum
151.	Swallow	5830	5475	3218	1576	1663	3305	2375	1763	663	2010	27878	2788	617	5830 (2012)
152.	House Martin	1001	989	27	65	6	62	22	38	27	47	2284	228	0	1001 (2012)
153.	Long-tailed Tit	0	0	0	0	15	0	30	0	0	10	55	5.5	0	30 (2018)
154.	Willow Warbler	0	0	0	1	0	0	0	0	0	0	1	0.1	0	1 (2015)
155.	Chiffchaff	2	3	0	2	0	3	7	9	0	0	26	2.6	1	9 (2019)
156.	Chiffchaff (Siberian - tristis)	0	0	1	0	0	0	0	0	0	0	1	0.1	0	1 (2014)
157.	Chiffchaff/Willow Warbler	0	0	0	0	0	2	0	0	0	0	2	0.2	0	2 (2017)
158.	Blackcap	0	0	0	0	0	0	8	0	0	0	8	0.8	0	8 (2018)
159.	Wren	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2017)
160.	Starling	22103	15519	15270	9760	4043	9221	11838	10420	4743	5220	108137	10814	2175	22103 (2012)
161.	Song Thrush	502	18	376	39	139	57	53	136	74	119	1513	151	12	502 (2012)
162.	Mistle Thrush	108	32	180	24	6	28	4	7	6	39	434	43	0	180 (2014)
163.	Redwing	695	2456	6693	421	47	416	19	563	512	1151	12973	1297	0	6693 (2014)
164.	Blackbird	4	8	26	11	5	5	13	0	4	1	77	7.7	6	26 (2014)
165.	Fieldfare	1131	1264	2297	1310	799	778	2711	2018	2415	712	15435	1544	278	2711 (2018)
166.	Ring Ouzel	22	8	8	0	1	0	1	0	0	0	40	4	0	22 (2012)
167.	thrush sp.	1778	1525	601	60	62	172	169	338	15	139	4859	486	0	1778 (2012)
168.	Black Redstart	0	1	1	0	0	0	0	0	0	0	2	0.2	0	1 (2013)
169.	Whinchat	0	0	0	0	1	1	0	1	0	0	3	0.3	0	1 (2016)
170.	Wheatear	0	0	0	0	14	4	0	0	1	0	19	1.9	4	14 (2016)
171.	Tree Sparrow	505	107	306	12	19	11	54	0	0	0	1014	101	0	505 (2012)
172.	Dunnock	12	7	13	3	1	3	31	9	1	0	80	8	0	31 (2018)
173.	Blue-headed Wagtail	457	1169	912	281	326	656	66	146	72	355	4440	444	257	1169 (2013)
174.	Yellow Wagtail (flavissima)	1	0	0	0	0	0	0	0	0	0	1	0.1	0	1 (2012)
175.	Grey-headed Wagtail	108	1	3	94	13	0	0	64	0	0	283	28	0	108 (2012)
176.	Yellow wagtail sp.	10	0	0	2	89	0	127	12	0	0	240	24	0	127 (2018)
177.	Citrine Wagtail	0	1	0	0	0	0	0	0	0	0	1	0.1	0	1 (2013)
178.	Grey Wagtail	3	14	3	2	9	9	6	2	0	2	50	5	0	14 (2013)
179.	White Wagtail	1432	953	2269	450	262	454	490	477	180	324	7291	729	52	2269 (2014)
180.	alba wagtail sp.	94	18	1	1	16	0	10	0	0	0	140	14	0	94 (2012)
181.	Richard's Pipit	0	0	1	0	0	0	0	1	0	0	2	0.2	0	1 (2014)
182.	Tawny Pipit	9	1	0	8	2	0	0	0	0	1	21	2.1	0	9 (2012)
183.	Meadow Pipit	2630	2097	3481	1419	3227	2158	1428	838	549	2274	20101	2010	514	3481 (2014)
184.	Tree Pipit	93	126	89	7	25	3	3	6	1	16	369	37	0	126 (2013)
185.	Red-throated Pipit	0	0	0	3	2	0	0	0	0	0	5	0.5	0	3 (2015)
186.	Water Pipit	1	3	0	0	0	0	0	0	0	0	4	0.4	1	3 (2013)
187.	pipit sp.	0	0	0	5	0	0	0	0	0	0	5	0.5	0	5 (2015)
188.	Chaffinch	29157	8489	23888	5522	4745	16106	5258	7429	11530	8304	120428	12043	3	29157 (2012)
189.	Brambling	514	61	28	24	0	56	67	12	7	5	774	77	0	514 (2012)
190.	finch sp.	4845	8364	944	380	943	221	763	364	441	248	17513	1751	0	8364 (2013)
191.	Hawfinch	12	0	1	0	1	0	0	0	0	0	14	1.4	0	12 (2012)
192.	Bullfinch	1	0	0	0	0	0	0	0	0	0	1	0.1	0	1 (2012)
193.	Greenfinch	35	572	34	173	12	17	31	40	3	13	930	93	200	572 (2013)
194.	Twite	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2017)
195.	Linnet	2708	3111	2076	2262	738	2398	1211	746	852	696	16798	1680	1030	3111 (2013)
196.	redpoll sp.	1	0	0	2	0	0	0	0	0	0	3	0.3	0	2 (2015)
197.	Crossbill	0	23	0	0	0	0	0	0	0	0	23	2.3	0	23 (2013)
198.	Goldfinch	368	101	326	265	96	224	290	568	109	90	2437	244	257	568 (2019)
199.	Serin	1	0	0	1	0	0	0	1	1	3	7	0.7	0	3 (2021)
200.	Siskin	55	25	49	141	19	58	5	78	48	61	539	54	0	141 (2015)
	Species	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	Totals	Average	Present	Year Maximum
201.	Lapland Bunting	0	0	0	0	0	0	0	1	0	1	2	0.2	0	1 (2019)
202.	Snow Bunting	0	0	0	1	0	0	0	0	0	0	1	0.1	0	1 (2015)
203.	Corn Bunting	0	0	1	1	0	0	0	0	0	0	2	0.2	0	1 (2014)
204.	Yellowhammer	57	23	14	8	24	6	7	2	0	0	141	14	1	57 (2012)
205.	Ortolan Bunting	5	0	0	0	0	0	0	0	0	0	5	0.5	0	5 (2012)
206.	Reed Bunting	464	1219	1001	619	362	467	1272	437	356	179	6376	638	62	1272 (2018)
207.	bunting sp.	0	0	6	0	0	0	0	0	0	0	6	0.6	0	6 (2014)
208.	passerine sp.	1047	2356	7359	1920	2082	2601	257	188	0	443	18253	1825	0	7359 (2014)
	Other species
1.	Small Tortoiseshell	0	0	1	0	0	0	0	0	0	0	1	0.1	0	1 (2014)
2.	Dark Clouded Yellow	0	0	8	0	0	0	0	0	0	0	8	0.8	0	8 (2014)
3.	Pale Clouded Yellow	0	0	0	0	0	0	0	0	0	1	1	0.1	0	1 (2021)
4.	Brimstone	0	0	0	0	0	0	0	0	2	0	2	0.2	0	2 (2020)
5.	European Peacock	1	8	1	1	2	2	0	0	0	0	15	1.5	0	8 (2013)
6.	Swallowtail	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2016)
7.	Small White	0	0	0	0	0	0	0	0	4	0	4	0.4	0	4 (2020)
8.	Red Admiral	11	8	109	0	5	5	0	12	8	19	177	18	0	109 (2014)
	Species	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	Totals	Average	Present	Year Maximum
	Totals	193788	201157	238244	77804	65570	87984	65394	105250	83141	75153	1193485	119349	31181
	Observation hours	282:55	359:46	422:46	314:26	223:05	241:01	154:39	238:22	109:25	194:04	2,540:29	254:03

Trektellen

Totals Bichterweerd 2012 - 2021