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Annual reports : Gruissan - étang de l'Ayrolle, 2024
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 Tuesday, January 16th, 2024 until Monday, April 15th, 2024

Number of days of migration watch : 27
Number of hours of migration watch : 112h40

Number of birds : 24143
Monday  2024 07h00-10h00- Duration : 03h00 
[Display all species]
Waxing Crescent (6 days) : Moonrise at 11h55 and moonset at 3h26
Sun : sunrise at 07h04 and sunset at 20h31
Day : dawn at 06h34 and dusk at 21h00
Comments :
07h00-10h00 : DCL, Gabriel Caucal, Christophe Mercier
 The most significant species
Total
  Show phenology  Great Cormorant (Phalacrocorax carbo)
191
  Show phenology  White Stork (Ciconia ciconia)
5031
  Show phenology  Black Kite (Milvus migrans)
331
  Show phenology  Western Marsh Harrier (Circus aeruginosus)
307
  Show phenology  Eurasian Sparrowhawk (Accipiter nisus)
174
  Show phenology  Common Kestrel (Falco tinnunculus)
182
  Show phenology  Lesser Black-backed Gull (Larus fuscus)
27
  Show phenology  Common Swift (Apus apus)
247
  Show phenology  Sand Martin (Riparia riparia)
5
  Show phenology  Barn Swallow (Hirundo rustica)
1259
  Show phenology  Western House Martin (Delichon urbicum)
144
  Show phenology  Western Yellow Wagtail (Motacilla flava)
37
  Show phenology  European Goldfinch (Carduelis carduelis)
119
  Show phenology  Common Linnet (Linaria cannabina)
401
  Daily total
14
migrants
1
migrant
3
migrants
2
migrants
3
migrants
2
migrants
1
migrant
11
migrants
1
migrant
13
migrants
5
migrants
2
migrants
9
migrants
6
migrants
 Other species
Total
   Northern Gannet (Morus bassanus)
1
   Caspian Tern (Hydroprogne caspia)
2
   Phylloscopus-Warbler, unidentified (Phylloscopu...)
1
   Rook (Corvus frugilegus)
4
  Daily total
1
migrant
2
migrants
1
migrant
2
migrants
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