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Annual reports : Crêt des Roches, 2021
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 Friday, August 20th, 2021 until Saturday, October 23rd, 2021

Number of days of migration watch : 64
Number of hours of migration watch : 536h24

Number of birds : 580601
Saturday  2021 07h45-16h45- Duration : 09h00 
Waning Gibbous (17 days) : Moonrise at 19h55 and moonset at 10h51
Sun : sunrise at 08h03 and sunset at 18h30
Day : dawn at 07h32 and dusk at 19h01
 The most significant species
Total
  Show phenology  Great Cormorant (Phalacrocorax carbo)
2396
  Show phenology  Red Kite (Milvus milvus)
6313
  Show phenology  Hen Harrier (Circus cyaneus)
9
  Show phenology  Eurasian Sparrowhawk (Accipiter nisus)
184
  Show phenology  Common Buzzard (Buteo buteo)
3119
  Show phenology  Common Kestrel (Falco tinnunculus)
490
  Show phenology  Stock Dove (Columba oenas)
1554
  Show phenology  Common Wood Pigeon (Columba palumbus)
419631
  Show phenology  Grey Wagtail (Motacilla cinerea)
54
  Show phenology  White Wagtail (Motacilla alba)
689
  Show phenology  Common Blackbird (Turdus merula)
164
  Show phenology  Song Thrush (Turdus philomelos)
1514
  Show phenology  Mistle Thrush (Turdus viscivorus)
349
  Show phenology  Coal Tit (Periparus ater)
95
  Show phenology  Eurasian Blue Tit (Cyanistes caeruleus)
1304
  Show phenology  Great Tit (Parus major)
371
  Show phenology  Eurasian Jay (Garrulus glandarius)
4132
  Show phenology  Western Jackdaw (Corvus monedula)
547
  Show phenology  Carrion Crow (Corvus corone)
170
  Show phenology  Common Starling (Sturnus vulgaris)
3783
  Show phenology  unidentified Passerine (Passeriformes sp.)
29273
  Show phenology  Common Chaffinch (Fringilla coelebs)
36198
  Show phenology  Brambling (Fringilla montifringilla)
3886
  Show phenology  European Serin (Serinus serinus)
145
  Show phenology  European Greenfinch (Carduelis chloris)
201
  Show phenology  European Goldfinch (Carduelis carduelis)
1274
  Show phenology  Eurasian Siskin (Carduelis spinus)
3165
  Show phenology  Common Linnet (Carduelis cannabina)
2003
  Show phenology  Hawfinch (Coccothraustes coccothraustes)
3639
  Daily total
52
migrants
175
migrants
3
migrants
10
migrants
201
migrants
6
migrants
8
migrants
4590
migrants
1
migrant
2
migrants
1
migrant
19
migrants
5
migrants
17
migrants
30
migrants
17
migrants
5
migrants
110
migrants
5
migrants
77
migrants
467
migrants
323
migrants
68
migrants
32
migrants
28
migrants
165
migrants
40
migrants
17
migrants
33
migrants
 Other species
Total
   unidentified raptor (Falconiformes sp.)
142
   Pipit (Anthus sp.)
358
   unidentified Thrush (Turdus sp.)
440
   Tit, unidentified (Paridae sp.)
93
   Northern Raven (Corvus corax)
59
   unidentified Corvid (Corvidae sp.)
351
   Rosy Starling (Pastor roseus)
1
   Red Crossbill (Loxia curvirostra)
13
  Show phenology  Eurasian Bullfinch (Pyrrhula pyrrhula)
32
  Daily total
1
migrant
3
migrants
7
migrants
20
migrants
3
migrants
53
migrants
1
migrant
1
migrant
11
migrants
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