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Annual reports : Défilé de l'Ecluse, 2021
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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 Sunday, July 18th, 2021 until Thursday, September 16th, 2021

Number of days of migration watch : 60
Number of hours of migration watch : 590h45

Number of birds : 69678
Thursday  2021 07h05-18h30- Duration : 11h25 
Waxing Gibbous (9 days) : Moonrise at 18h00 and moonset at 1h28
Sun : sunrise at 07h16 and sunset at 19h45
Day : dawn at 06h46 and dusk at 20h15
Comments :
07h05-18h30 : Vincent PERRIN (07h05-18h30), Raymond BEDOUET (08h30-11h35), Remi METAIS & Margaux SICRE (17h-18h30). Météo : T°= 15 à 20°C, Couverture nuageuse 8/8, Cumulus et Cumulonimbus, Vent Ouest faible, visibilité 05/10. Plusieurs averses dans l'après-midi. Peu d'oiseaux en migration car petit blocage météo.
 The most significant species
Total
  Show phenology  Great Egret (Casmerodius albus)
17
  Show phenology  Grey Heron (Ardea cinerea)
356
  Show phenology  White Stork (Ciconia ciconia)
3510
  Show phenology  Black Kite (Milvus migrans)
16360
  Show phenology  Red Kite (Milvus milvus)
338
  Show phenology  Western Marsh Harrier (Circus aeruginosus)
334
  Show phenology  Eurasian Sparrowhawk (Accipiter nisus)
76
  Show phenology  Common Buzzard (Buteo buteo)
109
   Golden Eagle (Aquila chrysaetos)
-
  Show phenology  Osprey (Pandion haliaetus)
54
  Show phenology  Common Kestrel (Falco tinnunculus)
45
  Show phenology  Eurasian Hobby (Falco subbuteo)
10
  Show phenology  Yellow-legged Gull (Larus michahellis)
67
  Show phenology  Common Wood Pigeon (Columba palumbus)
-
  Show phenology  unidentified Martin (Hirundinidae sp.)
9913
  Show phenology  Barn Swallow (Hirundo rustica)
6659
  Show phenology  Common House Martin (Delichon urbicum)
1257
  Show phenology  Eurasian Jay (Garrulus glandarius)
242
  Show phenology  unidentified Passerine (Passeriformes sp.)
32
  Daily total
+ 2 staging
11
migrants
29
migrants
1
migrant
8
migrants
10
migrants
1
migrant
3
migrants
+ 1 possibly local
6
migrants
22
migrants
2
migrants
1
migrant
+ 240 local
626
migrants
113
migrants
245
migrants
14
migrants
1
migrant
 Other species
Total
   Eurasian Collared Dove (Streptopelia decaocto)
-
   European Green Woodpecker (Picus viridis)
-
   Black Woodpecker (Dryocopus martius)
-
   Great Spotted Woodpecker (Dendrocopos major)
-
   Middle Spotted Woodpecker (Dendrocopos medius)
-
   Lesser Spotted Woodpecker (Dendrocopos minor)
-
  Show phenology  Tree Pipit (Anthus trivialis)
64
  Show phenology  Western Yellow Wagtail (Motacilla flava)
175
  Show phenology  Grey Wagtail (Motacilla cinerea)
7
   Northern Wheatear (Oenanthe oenanthe)
-
   Spotted Flycatcher (Muscicapa striata)
-
   European Pied Flycatcher (Ficedula hypoleuca)
-
   Willow Tit (Poecile montanus)
-
  Show phenology  Eurasian Blue Tit (Cyanistes caeruleus)
10
  Show phenology  Great Tit (Parus major)
42
  Show phenology  Eurasian Siskin (Carduelis spinus)
-
  Show phenology  Red Crossbill (Loxia curvirostra)
-
  Show phenology  Yellowhammer (Emberiza citrinella)
-
  Daily total
+ 5 staging
+ 1 local
+ 1 local
+ 1 local
+ 1 local
+ 1 local
1
migrant
4
migrants
2
migrants
+ 1 staging
+ 2 staging
+ 1 staging
+ 1 local
10
migrants
42
migrants
+ 2 staging
+ 35 erratic
+ 1 local
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