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Annual reports : Pierre-Aiguille, 2021
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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 Wednesday, February 17th, 2021 until Sunday, February 28th, 2021

Number of days of migration watch : 4
Number of hours of migration watch : 29h26

Number of birds : 4841
Sunday  2021 09h50-17h45 09h50-17h45 - Duration : 07h55 
[Display all species]
Waning Gibbous (16 days) : Moonrise at 19h56 and moonset at 8h18
Sun : sunrise at 07h18 and sunset at 18h27
Day : dawn at 06h49 and dusk at 18h56
Comments :
09h50-17h45 : Observateurs : R.METAIS, P.METAIS, A.CHAILLOU, A.GODART, F.DARONAT, J.ROURAT, L.DUBOIS, M.DESMOLLES, B.GONTIER, S et B. FRACHET
 The most significant species
Total
 Show the data Show phenology Common species Great Cormorant (Phalacrocorax carbo)
417
 Show the data Show phenology Common species White Stork (Ciconia ciconia)
602
 Show the data Show phenology Common species Red Kite (Milvus milvus)
105
 Show the data Show phenology Common species Eurasian Sparrowhawk (Accipiter nisus)
15
 Show the data Show phenology Common species Common Buzzard (Buteo buteo)
1035
 Show the data Common species Peregrine Falcon (Falco peregrinus)
1
 Show the data Show phenology Common species Common Crane (Grus grus)
114
 Show the data Common species unidentified Gull (Larus sp. (magna))
5
 Show the data Show phenology Common species Black-headed Gull (Chroicocephalus ridibundus)
2049
 Show the data Show phenology Common species Lesser Black-backed Gull (Larus fuscus)
4
 Show the data Show phenology Common species Stock Dove (Columba oenas)
17
 Show the data Show phenology Common species Common Wood Pigeon (Columba palumbus)
222
 Show the data Show phenology Common species Common Chaffinch (Fringilla coelebs)
18
  Daily total
271
migrants
395
migrants
39
migrants
10
migrants
769
migrants
1
migrant
95
migrants
5
migrants
1522
migrants
3
migrants
3
migrants
81
migrants
7
migrants
 Other species
Total
 Show the data Common species Common Gull (Larus canus)
2
 Show the data Common species European Serin (Serinus serinus)
2
 Show the data Common species Common Reed Bunting (Emberiza schoeniclus)
1
  Daily total
1
migrant
2
migrants
1
migrant
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