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Annual reports : Pointe de Grave, 2021
Watchpoint
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Bird Reports
See cumulative daily totals and phenology graphs
 
Not available. This representation exists with one or all sites, one or all years and a single species.

Comparison of the duration of migration : This graph compares the duration of migration in number of days between different key percentages of migration. It is possible to compare several sites on the same graph.
Not available. This representation exists with one or all sites, one or all years and a single species.

Comparison of migration dates : This graph matches key percentages of migration with calendar days. It is possible to compare several sites in the same graph.
Not available. This representation exists with a single site, all years and a single species.

Interannual trend : This interannual graph represents the evolution between annual totals.
Not available. This representation exists with a single site, one or all years and a single species.

Phenological trend : This graph represents the evolution of the percentage of migration. Key percentages are indicated by vertical red bars.
Not available. This representation exists with a single site, all years and a single species.

Daily evolution : This interannual graph represents the trend of dates and key percentages of migration.
Not available. This representation exists with a single site, one or all years and a single species.

Totals by hour : This graph represents the distribution of the total number of birds by hour. When a specific year is chosen, the average of all the years of the migration watch is shown in grey.
Not available. This representation exists with a single site, one or all years and a single species.

Seasonal phenology : This graph represents the distribution of the daily passage total (the decadary total is symbolized by red bars). If a specific year is selected, the average of all years is shown in grey.
Not available. This representation exists with a single site, one or all years and a single species.

Relative migration : This graph represents the distribution in daily percentage of migration (percentage by decade being symbolized by red bars). If a specific year is chosen, the average of all years is shown in grey.
Not available. This representation exists with a single site, one or all years and a single species.

Seasonal phenology (decade) : This graph represents the migration total by decade. If a specific year is selected, the average of all years of the migration survey is shown in grey.
Not available. This representation exists with a single site, one or all years and a single species.

Hourly mean per decade : This graph shows the mean number of migrants per hour over ten-day periods. When a specific year is selected, the mean number of migrants calculated over all years of record is depicted in grey.
Not available. This representation exists with a single site, one or all years and a single species.

Seasonal phenology (5-day period) : This graph shows the numbers of migratory individuals over 5-day periods. If a specific year is selected, the average of all years is shown in grey.
Not available. This representation exists with a single site, one or all years and a single species.

Hourly mean per 5-day period : This graph shows the mean number of individuals per hour over 5-day periods. When a specific year is selected, the mean number of migrants calculated over all years of record is shown in grey.
Available. This representation exists with a single site, a single year and all the species.

Summary table : This graph represents the seasonal totals as well as the latest totals of the migration watch. The upper table represents the most significant species for the watchpoint.
Available. This representation exists with a single site, a single year and all the species.

Migration synthesis : This graph is representing migration periods for each species at the site in a given year
Available. This representation exists with one or all sites, one or all years and all the species.

Observation effort : This table shows the observer pressure at the watchpoint for all years or day by day for a selected year.
Not available. This representation exists with all sites combined, one or all years and a single species.

Distribution Map : This map shows the relative importance of the watchpoints for a selected species. The dots represent the number of individuals per season.

Period : from Monday, March 1st, 2021 until Monday, April 5th, 2021

Number of days of migration watch : 36
Number of hours of migration watch : 412h11

Number of birds : 136547
Monday  2021 07h36-20h37 07h36-20h37 - Duration : 13h01 
[Display all species]
Last Quarter (22 days) : Moonrise at 4h49 and moonset at 13h27
Sun : sunrise at 07h35 and sunset at 20h38
Day : dawn at 07h05 and dusk at 21h08
Comments :
07h36-20h37 : Observateurs : Guillaume Peplinski, Jade Florent, Sévère Thomas, Raphaël Rochefort, Paul Capbern, Anthony Dixmier
 The most significant species
Total
 Show the data Show phenology Common species Northern Shoveler (Anas clypeata)
831
 Show the data Show phenology Common species Great Cormorant (Phalacrocorax carbo)
1144
 Show the data Show phenology Common species Little Egret (Egretta garzetta)
297
 Show the data Show phenology Common species Grey Heron (Ardea cinerea)
281
 Show the data Show phenology Common species Purple Heron (Ardea purpurea)
48
 Show the data Show phenology Common species Eurasian Spoonbill (Platalea leucorodia)
1744
 Show the data Show phenology Common species Black Kite (Milvus migrans)
422
 Show the data Show phenology Common species Western Marsh Harrier (Circus aeruginosus)
59
 Show the data Show phenology Common species Montagu's Harrier (Circus pygargus)
7
 Show the data Show phenology Common species Eurasian Sparrowhawk (Accipiter nisus)
36
 Show the data Show phenology Common species Common Kestrel (Falco tinnunculus)
401
 Show the data Show phenology Common species Eurasian Hobby (Falco subbuteo)
14
 Show the data Show phenology Common species Pied Avocet (Recurvirostra avosetta)
1112
 Show the data Show phenology Common species Whimbrel (Numenius phaeopus)
35
 Show the data Show phenology Common species Black-headed Gull (Chroicocephalus ridibundus)
6044
 Show the data Show phenology Common species Lesser Black-backed Gull (Larus fuscus)
41682
 Show the data Show phenology Common species Common Wood Pigeon (Columba palumbus)
463
 Show the data Show phenology Common species Eurasian Collared Dove (Streptopelia decaocto)
15
 Show the data Show phenology Common species Eurasian Hoopoe (Upupa epops)
41
 Show the data Show phenology Common species unidentified Martin (Hirundinidae sp.)
341
 Show the data Show phenology Common species Sand Martin (Riparia riparia)
13942
 Show the data Show phenology Common species Barn Swallow (Hirundo rustica)
12956
 Show the data Show phenology Common species Common House Martin (Delichon urbicum)
904
 Show the data Show phenology Common species Tree Pipit (Anthus trivialis)
146
 Show the data Show phenology Common species Meadow Pipit (Anthus pratensis)
17063
 Show the data Show phenology Common species Western Yellow Wagtail (Motacilla flava)
246
 Show the data Show phenology Common species White Wagtail (Motacilla alba)
2240
 Show the data Show phenology Common species unidentified Finch (Fringillidae sp.)
299
 Show the data Show phenology Common species Common Chaffinch (Fringilla coelebs)
10478
 Show the data Show phenology Common species European Serin (Serinus serinus)
801
 Show the data Show phenology Common species European Greenfinch (Carduelis chloris)
317
 Show the data Show phenology Common species European Goldfinch (Carduelis carduelis)
2866
 Show the data Show phenology Common species Eurasian Siskin (Carduelis spinus)
418
 Show the data Show phenology Common species Common Linnet (Carduelis cannabina)
6679
 Show the data Show phenology Common species Corn Bunting (Emberiza calandra)
23
  Daily total
25
migrants
34
migrants
34
migrants
12
migrants
8
migrants
157
migrants
4
migrants
2
migrants
1
migrant
1
migrant
10
migrants
1
migrant
8
migrants
34
migrants
128
migrants
520
migrants
11
migrants
5
migrants
2
migrants
4
migrants
85
migrants
119
migrants
4
migrants
23
migrants
130
migrants
6
migrants
5
migrants
37
migrants
3
migrants
17
migrants
4
migrants
83
migrants
5
migrants
292
migrants
3
migrants
 Other species
Total
 Show the data Show phenology Common species unidentified dabbling duck (Anatidae sp. (super...)
756
 Show the data Show phenology Common species Eurasian Teal (Anas crecca)
200
 Show the data Show phenology Common species Northern Pintail (Anas acuta)
1670
 Show the data Show phenology Common species Western Cattle Egret (Bubulcus ibis)
225
 Show the data Show phenology Common species White Stork (Ciconia ciconia)
104
 Show the data Show phenology Common species Osprey (Pandion haliaetus)
31
 Show the data Show phenology Common species Black-winged Stilt (Himantopus himantopus)
52
 Show the data Show phenology Common species Ruff (Philomachus pugnax)
97
 Show the data Show phenology Common species Common Redshank (Tringa totanus)
190
 Show the data Show phenology Common species Green Sandpiper (Tringa ochropus)
18
 Show the data Show phenology Common species unidentified Gull (Larus sp. (magna))
257
 Show the data Show phenology Common species Mediterranean Gull (Larus melanocephalus)
185
 Show the data Show phenology Common species Whiskered Tern (Chlidonias hybrida)
38
 Show the data Show phenology Common species Pipit (Anthus sp.)
213
 Show the data Show phenology Common species Western Jackdaw (Corvus monedula)
6
 Show the data Show phenology Common species Carrion Crow (Corvus corone)
234
 Show the data Show phenology Common species unidentified Passerine (Passeriformes sp.)
3976
 Show the data Show phenology Common species Brambling (Fringilla montifringilla)
36
  Daily total
6
migrants
19
migrants
23
migrants
47
migrants
3
migrants
3
migrants
13
migrants
20
migrants
50
migrants
2
migrants
45
migrants
44
migrants
38
migrants
5
migrants
1
migrant
2
migrants
43
migrants
2
migrants
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