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Annual reports : Crêt des Roches, 2021
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 Saturday, July 31st, 2021 until Sunday, November 21st, 2021

Number of days of migration watch : 98
Number of hours of migration watch : 756h14

Number of birds : 696956
Friday  2021 07h45-16h00- Duration : 08h15 
[Display all species]
Full (14 days) : Moonrise at 16h58 and moonset at 7h41
Sun : sunrise at 07h44 and sunset at 16h52
Day : dawn at 07h10 and dusk at 17h26
 The most significant species
Total
  Show phenology  Great Cormorant (Phalacrocorax carbo)
3911
  Show phenology  Great Egret (Casmerodius albus)
34
  Show phenology  Red Kite (Milvus milvus)
9430
  Show phenology  Eurasian Sparrowhawk (Accipiter nisus)
378
  Show phenology  Common Buzzard (Buteo buteo)
6670
  Show phenology  Redwing (Turdus iliacus)
1139
  Show phenology  Mistle Thrush (Turdus viscivorus)
492
  Show phenology  Eurasian Blue Tit (Cyanistes caeruleus)
2005
  Show phenology  Great Tit (Parus major)
495
  Show phenology  Rook (Corvus frugilegus)
3124
  Show phenology  Carrion Crow (Corvus corone)
252
  Show phenology  Common Starling (Sturnus vulgaris)
18676
  Show phenology  unidentified Passerine (Passeriformes sp.)
47592
  Show phenology  Eurasian Chaffinch (Fringilla coelebs)
47450
  Show phenology  Brambling (Fringilla montifringilla)
10506
  Show phenology  European Goldfinch (Carduelis carduelis)
3314
  Show phenology  Eurasian Siskin (Spinus spinus)
4984
  Show phenology  Hawfinch (Coccothraustes coccothraustes)
5934
  Show phenology  Yellowhammer (Emberiza citrinella)
67
  Daily total
2
migrants
+ 2 erratic
115
migrants
4
migrants
121
migrants
14
migrants
3
migrants
3
migrants
4
migrants
262
migrants
5
migrants
18
migrants
6
migrants
7
migrants
9
migrants
15
migrants
13
migrants
2
migrants
+ 1 not going through
 Other species
Total
   Pipit (Anthus sp.)
889
   Northern Raven (Corvus corax)
262
   unidentified Corvid (Corvidae sp.)
1339
   Eurasian Chaffinch / Brambling (Fringilla coele...)
41392
  Show phenology  Eurasian Bullfinch (Pyrrhula pyrrhula)
128
  Daily total
1
migrant
+ 21 possible migrants
12
migrants
25
migrants
3
migrants
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