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Annual reports : Pointe de Grave, 2013
Watchpoint
Graphs
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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 Sunday, March 3rd, 2013 until Friday, May 31st, 2013

Number of days of migration watch : 90
Number of hours of migration watch : 1179h35

Number of birds : 304414
Saturday  2013 04h50-19h10- Duration : 14h20 
Waning Crescent (23 days) : Moonrise at 3h55 and moonset at 15h42
Sun : sunrise at 06h46 and sunset at 21h15
Day : dawn at 06h13 and dusk at 21h48
 The most significant species
Total
    Little Egret (Egretta garzetta)
829
    Grey Heron (Ardea cinerea)
286
    Purple Heron (Ardea purpurea)
110
    Eurasian Spoonbill (Platalea leucorodia)
2046
    Black Kite (Milvus migrans)
1543
    Western Marsh Harrier (Circus aeruginosus)
64
    Hen Harrier (Circus cyaneus)
36
    Montagu's Harrier (Circus pygargus)
36
    Common Buzzard (Buteo buteo)
56
    Common Kestrel (Falco tinnunculus)
311
    Eurasian Hobby (Falco subbuteo)
322
    Eurasian Whimbrel (Numenius phaeopus)
534
    Black-headed Gull (Chroicocephalus ridibundus)
3283
    Lesser Black-backed Gull (Larus fuscus)
72454
    Eurasian Collared Dove (Streptopelia decaocto)
1271
    European Turtle Dove (Streptopelia turtur)
11801
    Common Swift (Apus apus)
28964
    Sand Martin (Riparia riparia)
7314
    Barn Swallow (Hirundo rustica)
72569
    Western House Martin (Delichon urbicum)
2555
    Western Yellow Wagtail (Motacilla flava)
655
    Eurasian Golden Oriole (Oriolus oriolus)
223
    European Goldfinch (Carduelis carduelis)
7862
    Common Linnet (Linaria cannabina)
10371
    Corn Bunting (Emberiza calandra)
72
  Daily total
6
migrants
1
migrant
1
migrant
73
migrants
36
migrants + 2 local + 1 reverse migrant
2
migrants
1
migrant
1
migrant
+ 3 local
7
migrants
20
migrants
3
migrants
45
migrants
14
migrants
54
migrants
321
migrants
1516
migrants
11
migrants
14686
migrants
186
migrants
2
migrants
29
migrants
58
migrants
5
migrants
1
migrant
 Other species
Total
    Bird, unidentified (Aves sp.)
130
    Western Cattle Egret (Bubulcus ibis)
309
    White Stork (Ciconia ciconia)
148
    Short-toed Snake Eagle (Circaetus gallicus)
44
    large unidentified wader (Charadriiformes sp.)
2079
    Common Greenshank (Tringa nebularia)
44
    Feral Rock Dove (Columba livia f. domestica)
357
    Carrion Crow (Corvus corone)
114
    Passerine, unidentified (Passeriformes sp.)
6030
  Daily total
11
migrants
11
migrants
8
migrants
4
migrants + 1 local
3
migrants
1
migrant
1
migrant
1
migrant
7
migrants
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