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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 Friday, April 19th, 2024

Number of days of migration watch : 30
Number of hours of migration watch : 128h40

Number of birds : 69792
Friday  2024 07h00-16h00- Duration : 09h00 
[Display all species]
Waxing Gibbous (10 days) : Moonrise at 16h16 and moonset at 5h21
Sun : sunrise at 06h57 and sunset at 20h35
Day : dawn at 06h27 and dusk at 21h05
Comments :
07h00-16h00 : DCL et Claudine Bouffet
 The most significant species
Total
  Show phenology  Great Cormorant (Phalacrocorax carbo)
201
  Show phenology  White Stork (Ciconia ciconia)
5451
  Show phenology  Black Kite (Milvus migrans)
552
  Show phenology  Red Kite (Milvus milvus)
18
  Show phenology  Western Marsh Harrier (Circus aeruginosus)
392
  Show phenology  Pallid Harrier (Circus macrourus)
3
  Show phenology  Montagu's Harrier (Circus pygargus)
17
  Show phenology  Eurasian Sparrowhawk (Accipiter nisus)
261
  Show phenology  Common Buzzard (Buteo buteo)
7
  Show phenology  Osprey (Pandion haliaetus)
27
  Show phenology  Common Kestrel (Falco tinnunculus)
328
  Show phenology  Merlin (Falco columbarius)
15
  Show phenology  Eurasian Hobby (Falco subbuteo)
22
  Show phenology  Eurasian Whimbrel (Numenius phaeopus)
30
  Show phenology  Gull-billed Tern (Gelochelidon nilotica)
1
  Show phenology  Sandwich Tern (Sterna sandvicensis)
252
  Show phenology  Common Wood Pigeon (Columba palumbus)
375
  Show phenology  Common Swift (Apus apus)
25334
  Show phenology  Alpine Swift (Apus melba)
8
  Show phenology  European Bee-eater (Merops apiaster)
158
  Show phenology  Sand Martin (Riparia riparia)
109
  Show phenology  Barn Swallow (Hirundo rustica)
16952
  Show phenology  Western House Martin (Delichon urbicum)
1308
  Show phenology  Western Yellow Wagtail (Motacilla flava)
1565
  Show phenology  Common Linnet (Linaria cannabina)
539
  Daily total
10
migrants
140
migrants
218
migrants
2
migrants
77
migrants
2
migrants
14
migrants
83
migrants
1
migrant
5
migrants
99
migrants
2
migrants
6
migrants
12
migrants
1
migrant
90
migrants
12
migrants
24350
migrants
7
migrants
133
migrants
69
migrants
13559
migrants
415
migrants
845
migrants
110
migrants
 Other species
Total
   Northern Gannet (Morus bassanus)
2
  Show phenology  Little Egret (Egretta garzetta)
23
   Glossy Ibis (Plegadis falcinellus)
27
   Common / Lesser Kestrel (Falco naumanni / tinnu...)
33
   Grey Plover (Pluvialis squatarola)
327
   unidentified Sandpiper / Stint (Calidris / Limi...)
4350
   Ruff (Philomachus pugnax)
14
   Eurasian Curlew (Numenius arquata)
230
   Spotted Redshank (Tringa erythropus)
1
   Common Redshank (Tringa totanus)
1
   Common Greenshank (Tringa nebularia)
9
   Wood Sandpiper (Tringa glareola)
4
   unidentified Corvid (Corvidae sp.)
1
  Daily total
1
migrant
14
migrants
26
migrants
14
migrants
17
migrants
360
migrants
5
migrants
2
migrants
1
migrant
1
migrant
9
migrants
4
migrants
1
migrant
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