Totals Slikken van de Heen 2011 - 2020

	Species	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	Totals	Average	Present	Year Maximum
1.	Dark-bellied Brent Goose	0	0	0	306	2	31	159	77	110	53	738	105	0	306 (2014)
2.	Canada Goose	0	0	0	0	0	0	6	2	9	43	60	8.6	0	43 (2020)
3.	Barnacle Goose	0	0	0	399	428	674	2364	509	1381	769	6524	932	0	2364 (2017)
4.	Greylag Goose	0	0	0	1136	1384	453	1478	918	3094	2161	10624	1518	0	3094 (2019)
5.	Anser sp.	0	0	0	0	70	0	0	0	42	0	112	16	0	70 (2015)
6.	Pink-footed Goose	0	0	0	65	336	0	158	0	35	24	618	88	0	336 (2015)
7.	Tundra Bean Goose	0	0	0	55	199	63	304	291	244	612	1768	253	0	612 (2020)
8.	Bean Goose sp.	0	0	0	0	0	50	117	0	6	86	259	37	0	117 (2017)
9.	Eurasian White-fronted Goose	0	0	0	3068	837	2428	1873	1472	2110	2666	14454	2065	0	3068 (2014)
10.	Black Swan	0	0	0	0	0	0	2	0	0	2	4	0.6	0	2 (2017)
11.	Mute Swan	0	0	0	0	0	0	2	0	13	18	33	4.7	0	18 (2020)
12.	Bewick's Swan	0	0	0	35	32	2	41	2	47	39	198	28	0	47 (2019)
13.	Egyptian Goose	0	0	0	0	2	1	4	0	46	0	53	7.6	0	46 (2019)
14.	Shelduck	0	0	0	17	0	16	72	57	50	24	236	34	0	72 (2017)
15.	Ruddy Shelduck	0	0	0	0	0	3	3	9	1	2	18	2.6	0	9 (2018)
16.	Garganey	0	0	0	0	0	0	0	14	0	0	14	2	0	14 (2018)
17.	Shoveler	0	0	0	0	1	65	9	178	8	35	296	42	0	178 (2018)
18.	Gadwall	0	0	0	0	5	21	10	77	67	26	206	29	0	77 (2018)
19.	Wigeon	0	0	0	30	109	1576	296	398	394	457	3260	466	0	1576 (2016)
20.	Mallard	0	0	0	14	3	5	58	22	18	47	167	24	0	58 (2017)
21.	Pintail	0	0	0	14	4	148	239	219	768	1536	2928	418	0	1536 (2020)
22.	Teal	0	0	0	0	28	15	56	226	40	48	413	59	0	226 (2018)
23.	duck sp.	0	0	0	0	0	0	0	0	25	0	25	3.6	0	25 (2019)
24.	Pochard	0	0	0	0	0	0	1	103	15	17	136	19	0	103 (2018)
25.	Tufted Duck	0	0	0	0	1	0	10	186	8	4	209	30	0	186 (2018)
26.	Goldeneye	0	0	0	0	5	0	4	0	21	3	33	4.7	0	21 (2019)
27.	Goosander	0	0	0	2	3	5	29	46	11	15	111	16	0	46 (2018)
28.	Red-breasted Merganser	0	0	0	4	0	6	9	7	15	2	43	6.1	0	15 (2019)
29.	Swift	0	0	0	0	0	2	1788	20	104	7	1921	274	0	1788 (2017)
30.	Cuckoo	0	0	0	0	0	1	0	1	0	0	2	0.3	0	1 (2016)
31.	Stock Dove	0	0	0	99	112	61	235	449	345	505	1806	258	0	505 (2020)
32.	Woodpigeon	0	0	0	524	549	319	993	1976	1513	2170	8044	1149	0	2170 (2020)
33.	Collared Dove	0	0	0	0	1	4	0	14	3	2	24	3.4	0	14 (2018)
34.	Coot	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2018)
35.	Crane	0	0	0	0	0	0	0	12	0	0	12	1.7	0	12 (2018)
36.	Great Crested Grebe	0	0	0	0	0	1	2	2	10	0	15	2.1	0	10 (2019)
37.	Greater Flamingo	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2017)
38.	Oystercatcher	0	0	0	3	0	0	6	28	14	10	61	8.7	0	28 (2018)
39.	Black-winged Stilt	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2017)
40.	Avocet	0	0	0	0	0	0	0	2	2	12	16	2.3	0	12 (2020)
41.	Lapwing	0	0	0	1016	2932	690	1720	1575	6434	7384	21751	3107	4000	7384 (2020)
42.	Golden Plover	0	0	0	998	755	171	2540	928	3680	6798	15870	2267	1700	6798 (2020)
43.	Grey Plover	0	0	0	0	0	1	8	4	4	6	23	3.3	0	8 (2017)
44.	Ringed Plover	0	0	0	0	0	22	15	17	4	0	58	8.3	0	22 (2016)
45.	Little Ringed Plover	0	0	0	0	0	0	0	3	1	0	4	0.6	0	3 (2018)
46.	Dotterel	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2019)
47.	Whimbrel	0	0	0	0	0	0	1	27	2	6	36	5.1	0	27 (2018)
48.	Curlew	0	0	0	29	47	8	26	51	119	42	322	46	0	119 (2019)
49.	Bar-tailed Godwit	0	0	0	0	0	0	0	3	0	0	3	0.4	0	3 (2018)
50.	Black-tailed Godwit	0	0	0	1	0	6	0	275	0	52	334	48	0	275 (2018)
	Species	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	Totals	Average	Present	Year Maximum
51.	Turnstone	0	0	0	0	0	0	0	2	5	5	12	1.7	0	5 (2019)
52.	Ruff	0	0	0	1	1	17	48	25	5	20	117	17	0	48 (2017)
53.	wader sp.	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2019)
54.	Curlew Sandpiper	0	0	0	0	0	5	0	0	0	0	5	0.7	0	5 (2016)
55.	Dunlin	0	0	0	8	0	1	14	28	0	10	61	8.7	0	28 (2018)
56.	Jack Snipe	0	0	0	0	0	0	0	0	0	1	1	0.1	0	1 (2020)
57.	Snipe	0	0	0	46	6	121	206	175	147	196	897	128	0	206 (2017)
58.	Common Sandpiper	0	0	0	1	0	0	2	0	6	4	13	1.9	0	6 (2019)
59.	Green Sandpiper	0	0	0	0	2	11	7	5	2	6	33	4.7	0	11 (2016)
60.	Redshank	0	0	0	0	0	0	0	47	0	75	122	17	0	75 (2020)
61.	Wood Sandpiper	0	0	0	0	0	0	0	2	0	0	2	0.3	0	2 (2018)
62.	Spotted Redshank	0	0	0	1	1	4	6	2	1	2	17	2.4	0	6 (2017)
63.	Greenshank	0	0	0	0	0	5	10	31	2	9	57	8.1	0	31 (2018)
64.	Black-headed Gull	0	0	0	392	472	363	1237	5337	1009	1044	9854	1408	0	5337 (2018)
65.	Mediterranean Gull	0	0	0	0	0	0	0	20	1	4	25	3.6	0	20 (2018)
66.	Common Gull	0	0	0	21	100	41	148	203	97	17	627	90	0	203 (2018)
67.	Great Black-backed Gull	0	0	0	2	11	16	4	16	13	3	65	9.3	0	16 (2016)
68.	Herring Gull	0	0	0	39	25	28	123	167	64	37	483	69	0	167 (2018)
69.	Caspian Gull	0	0	0	0	0	1	0	0	1	1	3	0.4	0	1 (2016)
70.	Yellow-legged Gull	0	0	0	0	0	0	0	2	0	1	3	0.4	0	2 (2018)
71.	Lesser Black-backed Gull	0	0	0	4	0	38	125	269	112	71	619	88	0	269 (2018)
72.	Caspian Tern	0	0	0	0	0	0	0	2	0	2	4	0.6	0	2 (2018)
73.	Sandwich Tern	0	0	0	0	0	0	0	4	1	0	5	0.7	0	4 (2018)
74.	Common Tern	0	0	0	0	0	0	13	70	57	27	167	24	0	70 (2018)
75.	Common/Arctic Tern	0	0	0	0	0	0	0	1	2	1	4	0.6	0	2 (2019)
76.	Black Tern	0	0	0	0	0	0	4	16	0	0	20	2.9	0	16 (2018)
77.	Black Stork	0	0	0	0	0	0	0	0	0	5	5	0.7	0	5 (2020)
78.	White Stork	0	0	0	0	0	1	0	2	3	2	8	1.1	0	3 (2019)
79.	Cormorant	0	0	0	4139	799	2246	2551	6554	4845	2620	23754	3393	0	6554 (2018)
80.	Glossy Ibis	0	0	0	1	0	0	0	0	0	0	1	0.1	0	1 (2014)
81.	Spoonbill	0	0	0	27	0	355	96	230	400	90	1198	171	0	400 (2019)
82.	Cattle Egret	0	0	0	0	0	1	14	6	1	1	23	3.3	0	14 (2017)
83.	Grey Heron	0	0	0	1	4	37	43	34	48	49	216	31	5	49 (2020)
84.	Purple Heron	0	0	0	1	0	0	0	5	0	0	6	0.9	0	5 (2018)
85.	Great White Egret	0	0	0	26	17	16	26	44	87	17	233	33	1	87 (2019)
86.	Little Egret	0	0	0	7	0	0	6	5	10	1	29	4.1	0	10 (2019)
87.	Osprey	0	0	0	0	0	2	4	12	8	3	29	4.1	0	12 (2018)
88.	Honey Buzzard	0	0	0	0	0	2	0	2	2	4	10	1.4	0	4 (2020)
89.	eagle sp.	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2019)
90.	Sparrowhawk	0	0	0	30	12	27	44	53	95	62	323	46	0	95 (2019)
91.	Goshawk	0	0	0	0	0	1	1	2	1	2	7	1	0	2 (2018)
92.	Marsh Harrier	0	0	0	4	3	44	10	60	70	59	250	36	0	70 (2019)
93.	Hen Harrier	0	0	0	1	3	2	4	8	9	10	37	5.3	0	10 (2020)
94.	Pallid Harrier	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2016)
95.	Hen/Montagu's/Pallid Harrier	0	0	0	0	0	1	0	1	1	0	3	0.4	0	1 (2016)
96.	Red Kite	0	0	0	0	0	0	0	8	1	0	9	1.3	0	8 (2018)
97.	Black Kite	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2017)
98.	White-tailed Eagle	0	0	0	0	0	0	0	0	0	1	1	0.1	0	1 (2020)
99.	Rough-legged Buzzard	0	0	0	0	0	0	1	1	0	0	2	0.3	0	1 (2017)
100.	Common Buzzard	0	0	0	6	3	16	20	35	68	91	239	34	5	91 (2020)
	Species	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	Totals	Average	Present	Year Maximum
101.	Short-eared Owl	0	0	0	0	1	0	1	0	0	0	2	0.3	0	1 (2015)
102.	Great Spotted Woodpecker	0	0	0	1	4	10	65	22	86	39	227	32	0	86 (2019)
103.	Green Woodpecker	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2019)
104.	Kestrel	0	0	0	1	0	5	3	9	26	21	65	9.3	0	26 (2019)
105.	Red-footed Falcon	0	0	0	0	0	1	0	0	0	0	1	0.1	0	1 (2016)
106.	Merlin	0	0	0	3	1	3	6	2	9	8	32	4.6	0	9 (2019)
107.	Hobby	0	0	0	0	0	1	4	3	8	2	18	2.6	0	8 (2019)
108.	Peregrine	0	0	0	0	0	2	9	3	2	1	17	2.4	0	9 (2017)
109.	Great Grey Shrike	0	0	0	0	1	0	0	1	0	0	2	0.3	0	1 (2015)
110.	Jay	0	0	0	28	0	26	39	20	1891	24	2028	290	0	1891 (2019)
111.	Magpie	0	0	0	1	0	0	0	0	4	0	5	0.7	0	4 (2019)
112.	Jackdaw	0	0	0	667	255	143	416	525	1140	1225	4371	624	0	1225 (2020)
113.	Rook	0	0	0	1	5	0	2	0	1	0	9	1.3	0	5 (2015)
114.	Carrion Crow	0	0	0	11	33	19	32	34	22	76	227	32	0	76 (2020)
115.	Coal Tit	0	0	0	3	42	0	326	0	18	2	391	56	0	326 (2017)
116.	Willow Tit	0	0	0	1	0	0	0	0	0	0	1	0.1	0	1 (2014)
117.	Blue Tit	0	0	0	191	131	131	447	82	1061	245	2288	327	0	1061 (2019)
118.	Great Tit	0	0	0	203	95	132	349	190	513	423	1905	272	0	513 (2019)
119.	Penduline Tit	0	0	0	0	0	5	1	0	0	1	7	1	0	5 (2016)
120.	Bearded Tit	0	0	0	0	0	1	19	0	15	0	35	5	0	19 (2017)
121.	Wood Lark	0	0	0	33	15	3	37	38	27	55	208	30	0	55 (2020)
122.	Skylark	0	0	0	3207	758	1303	4009	2279	3776	921	16253	2322	0	4009 (2017)
123.	Sand Martin	0	0	0	0	0	293	278	1868	882	1623	4944	706	0	1868 (2018)
124.	Swallow	0	0	0	17	0	1290	1161	5322	2961	1968	12719	1817	0	5322 (2018)
125.	House Martin	0	0	0	0	0	279	717	3137	433	607	5173	739	0	3137 (2018)
126.	Long-tailed Tit	0	0	0	42	81	6	38	37	34	24	262	37	0	81 (2015)
127.	Yellow-browed Warbler	0	0	0	0	0	1	0	0	0	1	2	0.3	0	1 (2016)
128.	Willow Warbler	0	0	0	0	0	0	0	2	0	0	2	0.3	0	2 (2018)
129.	Chiffchaff	0	0	0	15	4	10	18	5	47	27	126	18	7	47 (2019)
130.	Chiffchaff/Willow Warbler	0	0	0	0	0	4	0	0	1	1	6	0.9	0	4 (2016)
131.	Blackcap	0	0	0	1	1	8	3	5	16	13	47	6.7	0	16 (2019)
132.	Whitethroat	0	0	0	1	0	0	0	0	0	0	1	0.1	0	1 (2014)
133.	Firecrest	0	0	0	0	3	0	3	2	6	1	15	2.1	0	6 (2019)
134.	Goldcrest	0	0	0	9	135	26	18	78	165	228	659	94	0	228 (2020)
135.	Nuthatch	0	0	0	0	0	0	1	0	3	0	4	0.6	0	3 (2019)
136.	Short-toed Tree Creeper	0	0	0	1	1	1	0	0	1	0	4	0.6	0	1 (2014)
137.	Starling	0	0	0	17300	23123	4062	57923	40319	21680	25394	189801	27114	90	57923 (2017)
138.	Song Thrush	0	0	0	1647	86	1043	2452	3244	4017	2439	14928	2133	0	4017 (2019)
139.	Mistle Thrush	0	0	0	57	15	54	26	16	38	31	237	34	0	57 (2014)
140.	Redwing	0	0	0	4450	1199	2000	23519	5462	31036	90738	158404	22629	0	90738 (2020)
141.	Blackbird	0	0	0	280	117	159	205	79	616	176	1632	233	0	616 (2019)
142.	Fieldfare	0	0	0	806	1151	936	5603	770	9714	2463	21443	3063	300	9714 (2019)
143.	Ring Ouzel	0	0	0	0	0	0	3	0	47	7	57	8.1	0	47 (2019)
144.	Pied Flycatcher	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2019)
145.	Black Redstart	0	0	0	2	0	0	0	1	0	1	4	0.6	0	2 (2014)
146.	Redstart	0	0	0	0	0	3	1	0	1	0	5	0.7	0	3 (2016)
147.	Whinchat	0	0	0	0	0	0	1	0	0	0	1	0.1	0	1 (2017)
148.	Stonechat	0	0	0	1	0	0	6	0	0	0	7	1	0	6 (2017)
149.	Tree Sparrow	0	0	0	91	57	50	117	17	32	37	401	57	0	117 (2017)
150.	House Sparrow	0	0	0	0	0	7	6	0	0	0	13	1.9	0	7 (2016)
	Species	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	Totals	Average	Present	Year Maximum
151.	Dunnock	0	0	0	29	15	171	145	69	134	158	721	103	0	171 (2016)
152.	Blue-headed Wagtail	0	0	0	1	0	0	0	3	3	128	135	19	0	128 (2020)
153.	Yellow wagtail sp.	0	0	0	2	0	84	73	296	31	28	514	73	0	296 (2018)
154.	Grey Wagtail	0	0	0	35	3	52	120	45	50	82	387	55	0	120 (2017)
155.	White Wagtail	0	0	0	147	1	0	1	103	2	98	352	50	0	147 (2014)
156.	alba wagtail sp.	0	0	0	0	18	193	303	124	166	16	820	117	0	303 (2017)
157.	Meadow Pipit	0	0	0	1670	217	3402	9246	3389	3500	4760	26184	3741	0	9246 (2017)
158.	Tree Pipit	0	0	0	3	0	24	15	18	10	17	87	12.4	0	24 (2016)
159.	Olive-backed Pipit	0	0	0	0	0	0	1	0	1	0	2	0.3	0	1 (2017)
160.	Tree Pipit/Olive-backed Pipit	0	0	0	0	1	1	1	0	0	1	4	0.6	0	1 (2015)
161.	Water Pipit	0	0	0	2	7	1	4	9	7	10	40	5.7	0	10 (2020)
162.	Rock Pipit	0	0	0	0	1	1	10	6	1	1	20	2.9	0	10 (2017)
163.	Rock Pipit/Water Pipit	0	0	0	16	11	22	25	30	12	13	129	18	0	30 (2018)
164.	Chaffinch	0	0	0	18485	5323	3575	32512	12486	13395	24714	110490	15784	0	32512 (2017)
165.	Brambling	0	0	0	154	214	46	588	491	190	255	1938	277	0	588 (2017)
166.	Hawfinch	0	0	0	1	8	1	80	3	13	4	110	16	0	80 (2017)
167.	Bullfinch	0	0	0	10	1	0	5	0	0	0	16	2.3	0	10 (2014)
168.	Northern Bullfinch	0	0	0	0	1	0	0	0	0	0	1	0.1	0	1 (2015)
169.	Northern Bullfinch (trumpet call)	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2019)
170.	Greenfinch	0	0	0	132	92	77	332	190	182	252	1257	180	0	332 (2017)
171.	Linnet	0	0	0	199	18	206	652	451	256	381	2163	309	0	652 (2017)
172.	Lesser Redpoll	0	0	0	0	0	0	0	0	0	3	3	0.4	0	3 (2020)
173.	redpoll sp.	0	0	0	29	16	0	164	55	4	33	301	43	0	164 (2017)
174.	Crossbill	0	0	0	9	1	15	43	1	13	4	86	12.3	0	43 (2017)
175.	Goldfinch	0	0	0	58	25	19	224	57	178	336	897	128	0	336 (2020)
176.	Serin	0	0	0	1	0	0	1	0	2	0	4	0.6	0	2 (2019)
177.	Siskin	0	0	0	190	365	100	848	376	6900	1331	10110	1444	0	6900 (2019)
178.	Lapland Bunting	0	0	0	0	0	0	2	0	0	0	2	0.3	0	2 (2017)
179.	Corn Bunting	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2018)
180.	Yellowhammer	0	0	0	0	0	0	1	1	0	0	2	0.3	0	1 (2017)
181.	Little Bunting	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2019)
182.	Reed Bunting	0	0	0	190	74	80	244	241	210	155	1194	171	0	244 (2017)
183.	bunting sp.	0	0	0	0	0	2	0	0	2	0	4	0.6	0	2 (2016)
184.	passerine sp.	0	0	0	0	0	1	0	0	1	0	2	0.3	0	1 (2016)
	Other species
1.	Small Tortoiseshell	0	0	0	0	0	0	5	0	0	0	5	0.7	0	5 (2017)
2.	Dark Clouded Yellow	0	0	0	0	0	0	2	0	1	0	3	0.4	0	2 (2017)
3.	European Peacock	0	0	0	0	0	30	0	3	1	1	35	5	0	30 (2016)
4.	Swallowtail	0	0	0	0	0	0	0	0	1	0	1	0.1	0	1 (2019)
5.	Speckled Wood	0	0	0	0	0	1	2	0	0	0	3	0.4	0	2 (2017)
6.	Large White	0	0	0	0	0	1	1	0	0	0	2	0.3	0	1 (2016)
7.	Small White	0	0	0	0	0	10	0	0	0	2	12	1.7	0	10 (2016)
8.	white sp. (butterfly)	0	0	0	0	0	2	1	0	1	51	55	7.9	0	51 (2020)
9.	Comma	0	0	0	0	0	0	0	1	0	0	1	0.1	0	1 (2018)
10.	Red Admiral	0	0	0	0	1	54	3	9	26	14	107	15	0	54 (2016)
11.	Painted Lady	0	0	0	0	0	1	0	0	1	0	2	0.3	0	1 (2016)
	Other species
1.	Darter unknown	0	0	0	0	0	0	0	648	49	22	719	103	0	648 (2018)
2.	Migrant Hawker	0	0	0	0	0	0	0	2	1	1	4	0.6	0	2 (2018)
3.	Dragonfly unknown	0	0	0	0	0	0	0	0	2	0	2	0.3	0	2 (2019)
	Other species
1.	Bumblebee sp.	0	0	0	0	0	0	2	29	3	4	38	5.4	0	29 (2018)
	Species	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	Totals	Average	Present	Year Maximum
	Totals	0	0	0	63007	43031	30440	162928	106396	133672	191933	731407	104487	6108
	Observation hours				40:40	35:40	79:45	141:20	175:32	155:37	153:55	782:29	111:47

Trektellen

Totals Slikken van de Heen 2011 - 2020