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Annual reports : Crêt des Roches, 2026
Watchpoint
Graphs
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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 Wednesday, August 5th, 2026 until Friday, October 9th, 2026

Number of days of migration watch : 62
Number of hours of migration watch : 470h31

Number of birds : 307389
Friday  2026 07h30-16h00- Duration : 08h30 
[Display all species]
Waning Crescent (27 days) : Moonrise at 6h16 and moonset at 18h11
Sun : sunrise at 07h43 and sunset at 18h56
Day : dawn at 07h12 and dusk at 19h27
 The most significant species
Total
    Great Cormorant (Phalacrocorax carbo)
1149
    Red Kite (Milvus milvus)
4222
    Western Marsh Harrier (Circus aeruginosus)
188
    Eurasian Sparrowhawk (Accipiter nisus)
115
    Common Buzzard (Buteo buteo)
623
    Common Kestrel (Falco tinnunculus)
353
    Stock Dove (Columba oenas)
1280
    Common Wood Pigeon (Columba palumbus)
229530
    Woodlark (Lullula arborea)
491
    Eurasian Skylark (Alauda arvensis)
293
    Barn Swallow (Hirundo rustica)
43797
    Meadow Pipit (Anthus pratensis)
22
    White Wagtail (Motacilla alba)
122
    Dunnock (Prunella modularis)
50
    Song Thrush (Turdus philomelos)
1346
    Redwing (Turdus iliacus)
4
    Mistle Thrush (Turdus viscivorus)
201
    Eurasian Blue Tit (Cyanistes caeruleus)
144
    Great Tit (Parus major)
20
    Common Starling (Sturnus vulgaris)
665
    Passerine, unidentified (Passeriformes sp.)
1463
    Eurasian Chaffinch (Fringilla coelebs)
4848
    Brambling (Fringilla montifringilla)
6
    European Serin (Serinus serinus)
8
    European Goldfinch (Carduelis carduelis)
37
    Eurasian Siskin (Spinus spinus)
364
    Common Linnet (Linaria cannabina)
40
    Hawfinch (Coccothraustes coccothraustes)
192
  Daily total
3
migrants
192
migrants
3
migrants
12
migrants + 1 not going through
76
migrants
26
migrants
13
migrants
277
migrants
353
migrants
1
migrant
13
migrants
9
migrants
23
migrants
2
migrants
381
migrants
4
migrants
10
migrants
8
migrants
2
migrants
56
migrants
439
migrants
2155
migrants
4
migrants
2
migrants
2
migrants
176
migrants
1
migrant
35
migrants
 Other species
Total
   Lark, unidentified (Alaudidae sp.)
98
   Pipit, unidentified (Anthus sp.)
107
   Red Crossbill (Loxia curvirostra)
7
  Daily total
46
migrants
37
migrants
7
migrants
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