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Annual reports : Gruissan-Narbonne, 2021
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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 Thursday, July 15th, 2021 until Friday, October 22nd, 2021

Number of days of migration watch : 46
Number of hours of migration watch : 360h35

Number of birds : 183100
Friday  2021 08h00-18h00- Duration : 10h00 
Waning Gibbous (16 days) : Moonrise at 19h57 and moonset at 9h50
Sun : sunrise at 08h10 and sunset at 18h53
Day : dawn at 07h41 and dusk at 19h22
Comments :
08h00-18h00 : Observateurs : Florian Escot, Jean-Luc Dedieu
 The most significant species
Total
  Show phenology  Great Cormorant (Phalacrocorax carbo)
482
  Show phenology  Black Stork (Ciconia nigra)
121
  Show phenology  Red Kite (Milvus milvus)
292
  Show phenology  Short-toed Snake Eagle (Circaetus gallicus)
143
  Show phenology  Hen Harrier (Circus cyaneus)
8
  Show phenology  Eurasian Sparrowhawk (Accipiter nisus)
3213
  Show phenology  Common Buzzard (Buteo buteo)
793
  Show phenology  Common Kestrel (Falco tinnunculus)
467
  Show phenology  Common Crane (Grus grus)
564
  Show phenology  Common Wood Pigeon (Columba palumbus)
5295
  Show phenology  Woodlark (Lullula arborea)
1
  Show phenology  Eurasian Skylark (Alauda arvensis)
58
  Show phenology  Eurasian Crag Martin (Ptyonoprogne rupestris)
201
  Show phenology  Meadow Pipit (Anthus pratensis)
104
  Show phenology  Grey Wagtail (Motacilla cinerea)
38
  Show phenology  White Wagtail (Motacilla alba)
219
  Show phenology  Dunnock (Prunella modularis)
2
  Show phenology  Song Thrush (Turdus philomelos)
67
  Show phenology  Mistle Thrush (Turdus viscivorus)
13
  Show phenology  Eurasian Blue Tit (Cyanistes caeruleus)
101
  Show phenology  Common Chaffinch (Fringilla coelebs)
26201
  Show phenology  European Serin (Serinus serinus)
402
  Show phenology  European Greenfinch (Carduelis chloris)
77
  Show phenology  European Goldfinch (Carduelis carduelis)
83
  Show phenology  Eurasian Siskin (Carduelis spinus)
208
  Show phenology  Common Linnet (Carduelis cannabina)
183
  Show phenology  Common Reed Bunting (Emberiza schoeniclus)
21
  Show phenology  Corn Bunting (Emberiza calandra)
27
  Daily total
45
migrants
+ 2 staging
5
migrants
1
migrant
1
migrant + 1 staging
105
migrants
26
migrants
2
migrants
64
migrants
274
migrants
1
migrant
16
migrants
12
migrants
39
migrants
2
migrants
87
migrants
2
migrants
16
migrants
2
migrants
99
migrants
9884
migrants
31
migrants
1
migrant
2
migrants
148
migrants
52
migrants
6
migrants
1
migrant
 Other species
Total
   Mute Swan (Cygnus olor)
-
  Show phenology  Pink-backed Pelican (Pelecanus rufescens)
11
   Bonelli's Eagle (Aquila fasciata)
2
   Water Rail (Rallus aquaticus)
-
   Common Snipe (Gallinago gallinago)
-
   Common Redshank (Tringa totanus)
-
   Green Sandpiper (Tringa ochropus)
-
  Show phenology  Sandwich Tern (Sterna sandvicensis)
-
   Common Kingfisher (Alcedo atthis)
-
   Water Pipit (Anthus spinoletta)
6
   Black Redstart (Phoenicurus ochruros)
-
   Redwing (Turdus iliacus)
1
   Yellow-browed Warbler (Phylloscopus inornatus)
1
   Common Chiffchaff (Phylloscopus collybita)
-
   Great Tit (Parus major)
-
   Eurasian Penduline Tit (Remiz pendulinus)
2
   unidentified Passerine (Passeriformes sp.)
2217
   Brambling (Fringilla montifringilla)
15
   Red Crossbill (Loxia curvirostra)
26
   Eurasian Bullfinch (Pyrrhula pyrrhula)
1
  Daily total
+ 9 local
+ 23 local
+ 2 local
+ 1 local
+ 23 local
+ 116 local
+ 1 local
+ 1 local
+ 1 local
5
migrants
+ 1 staging
1
migrant
1
migrant
+ 1 staging
+ 1 local
2
migrants
2217
migrants
8
migrants
13
migrants
1
migrant
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