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Annual reports : Pointe de Grave, 2020
Watchpoint
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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 1st, 2020 until Saturday, May 30th, 2020

Number of days of migration watch : 72
Number of hours of migration watch : 815h14

Number of birds : 214304
Saturday  2020 06h30-14h10 06h30-14h10 - Duration : 07h40 
[Display all species]
Waxing Gibbous (8 days) : Moonrise at 13h55 and moonset at 3h11
Sun : sunrise at 06h19 and sunset at 21h44
Day : dawn at 05h42 and dusk at 22h21
Comments :
06h30-14h10 : Observateurs : Pierre Migaud, Guillaume Peplinski
 The most significant species
Total
 Show the data Show phenology Common species Little Egret (Egretta garzetta)
695
 Show the data Show phenology Common species Purple Heron (Ardea purpurea)
140
 Show the data Show phenology Common species Eurasian Spoonbill (Platalea leucorodia)
2529
 Show the data Show phenology Common species European Honey Buzzard (Pernis apivorus)
1097
 Show the data Show phenology Common species Black Kite (Milvus migrans)
1262
 Show the data Show phenology Common species Common Buzzard (Buteo buteo)
18
 Show the data Show phenology Common species Common Kestrel (Falco tinnunculus)
290
 Show the data Show phenology Common species Eurasian Hobby (Falco subbuteo)
258
 Show the data Show phenology Common species Lesser Black-backed Gull (Larus fuscus)
30542
 Show the data Show phenology Common species Eurasian Collared Dove (Streptopelia decaocto)
2092
 Show the data Show phenology Common species European Turtle Dove (Streptopelia turtur)
4671
 Show the data Show phenology Common species Common Swift (Apus apus)
40098
 Show the data Show phenology Common species Barn Swallow (Hirundo rustica)
62548
 Show the data Show phenology Common species Common House Martin (Delichon urbicum)
9335
  Daily total
29
migrants
3
migrants
43
migrants
25
migrants
17
migrants
1
migrant
2
migrants
2
migrants
2
migrants
8
migrants
1
migrant
134
migrants
18
migrants
3
migrants
 Other species
Total
 Show the data Show phenology Common species Western Cattle Egret (Bubulcus ibis)
1686
 Show the data Show phenology Common species Black Stork (Ciconia nigra)
6
 Show the data Show phenology Common species Short-toed Snake Eagle (Circaetus gallicus)
9
 Show the data Show phenology Common species Mediterranean Gull (Larus melanocephalus)
333
 Show the data Show phenology Common species Rosy Starling (Pastor roseus)
23
  Daily total
45
migrants
1
migrant
+ 1 local
6
migrants
16
migrants + 7 not going through
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