Select until 14 March

Totals Castricum aan Zee (zeetrek) 2017 - 2026



 Species2017201820192020202120222023202420252026TotalsAveragePresentYear
Maximum
1.Dark-bellied Brent Goose46205160571064966195145744213209391212441304413016496 (2020)
2.Pale-bellied Brent Goose20013200710252.5013 (2020)
3.Black Brant000100000010.101 (2020)
4.Canada Goose337167392727143120120043 (2025)
5.Canada X Greylag Goose000000000110.101 (2026)
6.Barnacle Goose11333858316230972122110778117866129173624911249106129 (2025)
7.Bar-headed Goose002000000020.202 (2019)
8.Ross's Goose000200000020.202 (2020)
9.Snow Goose010000000010.101 (2018)
10.Greylag Goose231161137284220335120251658126252325223658 (2025)
11.Anser sp.00007002000727.2070 (2021)
12.goose sp.52098450119137540172723019401940540 (2022)
13.Domestic Goose7012012001141.407 (2017)
14.Pink-footed Goose4745158551120104239722229222901042 (2024)
15.Tundra Bean Goose01215102100534286290210 (2022)
16.Bean Goose sp.004000000040.404 (2019)
17.Eurasian White-fronted Goose4289814688911153014813716231620889 (2021)
18.Black Swan000001000010.101 (2022)
19.Mute Swan202612261744922014014026 (2018)
20.Bewick's Swan000001000010.101 (2022)
21.swan sp.300000000030.303 (2017)
22.Egyptian Goose954910814510912886492221410051010222 (2025)
23.Shelduck119017011014113819641173136191916482912137121461964 (2021)
24.Ruddy Shelduck00000013000131.3013 (2023)
25.Garganey301716293511922190269270119 (2022)
26.Shoveler10775641064253145912021562801837249194919192531 (2020)
27.Gadwall1529414312412370565612410952959152 (2017)
28.Wigeon5144298821274370464317892937131525851492804728055195144 (2017)
29.Mallard34722618242516109023423172 (2018)
30.Pintail85523812918532449410414917718128362840855 (2017)
31.Teal31391988193117472294213510208813560300189951900513560 (2025)
32.duck sp.7427263785163519463463263 (2020)
33.Red-crested Pochard104000000050.504 (2019)
34.Pochard2018131222531720816280280122 (2020)
35.Tufted Duck66137801031691034933660806810169 (2021)
36.Scaup77381640177531928190728730401 (2020)
37.Aythya sp.02000500010262.6020 (2018)
38.King Eider000000010010.101 (2024)
39.Eider593415438853797507429340860139537153733860 (2025)
40.Velvet Scoter2218312126841825831613665813110311171366 (2024)
41.Common Scoter2473516642108586402649809185312165064199134411135285026285031175064199 (2024)
42.Long-tailed Duck11750861301424.2111 (2017)
43.Goldeneye231933538539918421121053 (2022)
44.Smew02001311091272.7013 (2021)
45.Goosander4108111614103122909016 (2021)
46.Red-breasted Merganser4284395535886196782111374917342174226678 (2022)
47.Swift68013202478010410068 (2017)
48.Feral Pigeon432298130000868.6043 (2017)
49.Stock Dove002000010030.302 (2019)
50.Red-necked Grebe46657133542555.5313 (2022)
 Species2017201820192020202120222023202420252026TotalsAveragePresentYear
Maximum
51.Great Crested Grebe46513245713449271764377460483169688468820921764 (2022)
52.Slavonian Grebe250100110010135 (2018)
53.Black-necked Grebe120110011070.712 (2018)
54.Black-necked / Slavonian Grebe000012002050.512 (2022)
55.Greater Flamingo000000003030.303 (2025)
56.Oystercatcher45361454258062631549223994220482348211942 (2025)
57.Avocet7314698631653361779457014341430457 (2025)
58.Grey Plover41822260380360668339232311090515951641109 (2025)
59.Golden Plover8716278352924127025425087 (2017)
60.Dotterel000000001010.101 (2025)
61.Ringed Plover2371851331224870316158394116641663394 (2025)
62.Little Ringed Plover1102120220111.102 (2020)
63.Lapwing3224301205874000613431340874 (2022)
64.Kentish Plover101010212080.802 (2023)
65.Whimbrel40098430891708256109108375033753380891 (2020)
66.Curlew1201962311583472518160117315641560347 (2021)
67.Bar-tailed Godwit21101375584538421262638044799550233322333126263 (2022)
68.Black-tailed Godwit11851110050323.2018 (2018)
69.Woodcock110130000060.603 (2021)
70.Snipe521818333939010911033 (2022)
71.Grey Phalarope110101510010105 (2023)
72.Common Sandpiper0533515160292.906 (2025)
73.Green Sandpiper4242040120191.904 (2017)
74.Wood Sandpiper100021100050.502 (2021)
75.Redshank621111173429414763108196012401240342 (2020)
76.Spotted Redshank101213160160404016 (2022)
77.Greenshank15923818161550014515050 (2025)
78.Turnstone36216669847711117950576581111 (2023)
79.Knot3605273912351686129520833426660881888202666 (2025)
80.Ruff33501262604164261313310126 (2019)
81.wader sp.6352939611522033102677015411540635 (2017)
82.small wader000000006060.606 (2025)
83.large wader0000568680000924920868 (2022)
84.Curlew Sandpiper17658832340565.6017 (2017)
85.Temminck's Stint010000001020.201 (2018)
86.Sanderling27411172154444371893900182798017145681777617785164437 (2020)
87.Dunlin2132165422752684439161914814763733252732763327667332 (2025)
88.Purple Sandpiper5005104520222.205 (2017)
89.Little Stint82241411230373.7011 (2023)
90.Calidris sp.62411538215163995184175015641560624 (2017)
91.Little Tern1841072984864613425684351023692370486 (2020)
92.Gull-billed Tern020110002060.602 (2018)
93.Caspian Tern2013205020151.505 (2023)
94.Whiskered Tern000000010010.101 (2024)
95.Black Tern3219935385724082604952583420539353962408 (2021)
96.White-winged Black Tern0000701120111.107 (2021)
97.Arctic Tern19924813816627948755237111019201920487 (2022)
98.Common/Arctic Tern5272215375081559834566845512991124061802701169761169820434566 (2021)
99.Common Tern31002627410660945956486668272170150103724737253956827 (2023)
100.Roseate Tern000100000010.101 (2020)
 Species2017201820192020202120222023202420252026TotalsAveragePresentYear
Maximum
101.sterna sp.000000060060.606 (2024)
102.Sandwich Tern11840134611085514618278516282708845801113701077121077129127851 (2021)
103.Little Gull16727989137901042741392624267198707243210440110440211741392 (2021)
104.Kittiwake423724048887369205821624525100019413524972249720577369 (2020)
105.Sabine's Gull310100320010103 (2017)
106.Black-headed Gull131586197197101722225755226766915105691017510821334591334676525755 (2021)
107.Laughing Gull001000000010.101 (2019)
108.Mediterranean Gull44359865234444443680675684234 (2021)
109.Common Gull88655304112671659217354148181187652829534134610223810224182017354 (2021)
110.Caspian Gull364491317490696.9117 (2023)
111.Herring Gull100000106300308310300 (2026)
112.L. argentatus x L. hyperboreus000010000010.101 (2021)
113.Yellow-legged Gull3212652050262.626 (2021)
114.Great Black-backed Gull4375416325126375406626624437 (2017)
115.Glaucous Gull000000100010.101 (2023)
116.Lesser Black-backed Gull164263971242632683272968977327 (2025)
117.Laridae sp.000000100010.101 (2023)
118.Iceland Gull202010010060.602 (2017)
119.Long-tailed Skua300535833030338 (2023)
120.skua sp.22161513311219415014715331 (2021)
121.Arctic Skua78526147400892132274010361047400 (2021)
122.S. parasiticus / pomarinus003010500090.905 (2023)
123.Pomarine Skua16133912105507010711139 (2019)
124.Great Skua482815173301018016016348 (2017)
125.Puffin1013232001131.303 (2020)
126.Black Guillemot001000000010.101 (2019)
127.Razorbill283421421951183115364304321183 (2023)
128.Razorbill/Guillemot200939632072770136943877342211852148232896028962217701 (2020)
129.alca / fratercula spec000000001010.101 (2025)
130.Little Auk20033120510262.6112 (2022)
131.Guillemot232452051202371091067885114511570237 (2021)
132.Red-throated Diver410901519542974278515905044051086408643222785 (2022)
133.Black-throated Diver27792652197155216917152 (2021)
134.Great Northern Diver2011123201131.313 (2023)
135.diver sp.30413156173654407275344926652449243919693361933627677275 (2021)
136.Great Northern/Yellow-billed Diver010010000020.201 (2018)
137.Storm Petrel200000000020.202 (2017)
138.storm-petrel sp.100000000010.101 (2017)
139.Leach's Petrel52704524120505027 (2018)
140.Fulmar1164856622151113013056 (2021)
141.Sooty Shearwater99110257535948022122075 (2022)
142.Manx Shearwater517301361320686.8032 (2025)
143.Balearic Shearwater000004100050.504 (2022)
144.Gannet9391759516128020059874399181428894791706717072824399 (2023)
145.Cormorant4502260527103461111346160396773524321243221210346 (2021)
146.Spoonbill8822152327513846440723720327 (2021)
147.Little Egret220100102080.802 (2017)
148.Great White Egret12274192940505019 (2022)
149.Grey Heron61127271211211123014915027 (2019)
150.Purple Heron000200000020.202 (2020)
 Species2017201820192020202120222023202420252026TotalsAveragePresentYear
Maximum
151.Osprey201103002090.903 (2022)
152.Sparrowhawk2103201200111.103 (2020)
153.Marsh Harrier0252201001131.305 (2019)
154.Hen Harrier111112010080.802 (2022)
155.White-tailed Eagle000001000010.101 (2022)
156.Rough-legged Buzzard000000010010.101 (2024)
157.Common Buzzard100000000010.101 (2017)
158.Short-eared Owl101000000020.201 (2017)
159.Kestrel730300204120207 (2017)
160.Merlin5463020030232.306 (2019)
161.Hobby101100000030.301 (2017)
162.Peregrine4444315200272.705 (2023)
163.Rose-ringed Parakeet100000000010.101 (2017)
164.Jackdaw600300000090.906 (2017)
165.Rook2110332020141.403 (2021)
166.Carrion Crow000000001560.605 (2026)
167.Blue Tit300000000030.303 (2017)
168.Skylark695021013371271813810695 (2017)
169.Shore Lark40000810020242.4010 (2023)
170.Sand Martin731510000180444.4018 (2025)
171.Swallow4121520072439013013041 (2017)
172.House Martin004000021070.704 (2019)
173.Zitting Cisticola000000100010.101 (2023)
174.Starling168047346834938114145065942594304506 (2025)
175.Fieldfare071000000000710710710 (2018)
176.House Sparrow000002000020.202 (2022)
177.Blue-headed Wagtail0030500160151.506 (2025)
178.Yellow Wagtail (flavissima)000100001020.201 (2020)
179.Grey-headed Wagtail010100020040.402 (2024)
180.Yellow wagtail sp.9200100050171.709 (2017)
181.Grey Wagtail450110120130363.6013 (2025)
182.White Wagtail022511030500464.6025 (2019)
183.alba wagtail sp.5318791621112011912053 (2017)
184.Pied Wagtail100000002030.302 (2025)
185.Meadow Pipit200100203080.803 (2025)
186.Tree Pipit120010000040.402 (2018)
187.Water Pipit000000002020.202 (2025)
188.Rock Pipit3121410150181.805 (2025)
189.Chaffinch00000010000101010 (2023)
190.Brambling101000000020.201 (2017)
191.Common Rosefinch010000000010.101 (2018)
192.Twite020000000020.202 (2018)
193.Linnet300100000040.403 (2017)
194.Mealy Redpoll48100000000858.5081 (2018)
195.Lesser Redpoll000000001010.101 (2025)
196.Redpoll200000000020.202 (2017)
197.Serin001000000010.101 (2019)
198.Siskin200100001040.402 (2017)
199.Lapland Bunting001100000020.201 (2019)
200.Snow Bunting74416105151444.4010 (2022)
 Species2017201820192020202120222023202420252026TotalsAveragePresentYear
Maximum
201.Yellowhammer000000001010.101 (2025)
202.Reed Bunting800000000080.818 (2017)
Other species
1.Harbour Porpoise8278448322757525526177217217227 (2021)
2.Humpback whale000000010010.101 (2024)
3.Grey seal3311521000161.615 (2021)
4.Common Seal119361451140545.4614 (2021)
5.Common / Grey seal002300100060.603 (2020)
Other species
1.Brimstone001000000010.101 (2019)
2.European Peacock001000000010.101 (2019)
3.white sp. (butterfly)37119110000323.2011 (2019)
4.Red Admiral005000000050.505 (2019)
5.Painted Lady002000000020.202 (2019)
 Species2017201820192020202120222023202420252026TotalsAveragePresentYear
Maximum
  Totals 1288358690211101521132327218113174411776512988213344411847133493813349424725  
  Observation hours 279:45208:14246:10300:06324:30220:06226:59166:30246:5022:002,241:10224:07  


 
Partners
         
Sponsored by