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Annual reports : Crêt des Roches, 2020
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 Sunday, July 19th, 2020 until Sunday, November 22nd, 2020

Number of days of migration watch : 95
Number of hours of migration watch : 693h20

Number of birds : 1006217
Sunday  2020 09h00-15h30- Duration : 06h30 
[Display all species]
First Quarter (7 days) : Moonrise at 14h05 and moonset at 0h14
Sun : sunrise at 07h48 and sunset at 16h49
Day : dawn at 07h14 and dusk at 17h23
 The most significant species
Total
  Show phenology  Great Cormorant (Phalacrocorax carbo)
4035
  Show phenology  Red Kite (Milvus milvus)
10755
  Show phenology  Common Buzzard (Buteo buteo)
4966
  Show phenology  Rook (Corvus frugilegus)
692
  Show phenology  Carrion Crow (Corvus corone)
196
  Show phenology  Eurasian Chaffinch (Fringilla coelebs)
75593
  Show phenology  European Goldfinch (Carduelis carduelis)
4811
  Show phenology  Eurasian Siskin (Spinus spinus)
7541
  Daily total
45
migrants
63
migrants
44
migrants
39
migrants
1
migrant
30
migrants
2
migrants
2
migrants
 Other species
Total
   Common Crane (Grus grus)
219
   Northern Raven (Corvus corax)
121
   unidentified Corvid (Corvidae sp.)
1958
  Daily total
6
migrants
2
migrants
6
migrants
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