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Annual reports : Les boucles de la Marne, 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, September 5th, 2021 until Tuesday, October 19th, 2021

Number of days of migration watch : 16
Number of hours of migration watch : 85h15

Number of birds : 54205
Tuesday  2021 07h50-14h50- Duration : 07h00 
Waxing Gibbous (13 days) : Moonrise at 18h47 and moonset at 6h38
Sun : sunrise at 08h15 and sunset at 18h49
Day : dawn at 07h43 and dusk at 19h21
Comments :
07h50-14h50 : Observateurs: T.HURTREL, vent S bien présent avec des rafales de 30 km/h, légère couverture ce dégageant rapidement pour laisser un grand ciel bleu. A partir de 11h15 le flux de passereaux faiblit. A noter 15°C à 7h45, 23°C au départ du site
 The most significant species
Total
  Show phenology  Western Marsh Harrier (Circus aeruginosus)
40
  Show phenology  Common Buzzard (Buteo buteo)
28
  Show phenology  European Golden Plover (Pluvialis apricaria)
21
  Show phenology  Northern Lapwing (Vanellus vanellus)
1340
  Show phenology  Stock Dove (Columba oenas)
234
  Show phenology  Common Wood Pigeon (Columba palumbus)
35718
  Show phenology  Woodlark (Lullula arborea)
148
  Show phenology  Eurasian Skylark (Alauda arvensis)
843
  Show phenology  Barn Swallow (Hirundo rustica)
798
  Show phenology  Meadow Pipit (Anthus pratensis)
1667
  Show phenology  White Wagtail (Motacilla alba)
229
  Show phenology  Song Thrush (Turdus philomelos)
209
  Show phenology  Redwing (Turdus iliacus)
77
  Show phenology  Mistle Thrush (Turdus viscivorus)
18
  Show phenology  Common Chiffchaff (Phylloscopus collybita)
31
  Show phenology  Common Starling (Sturnus vulgaris)
1891
  Show phenology  Common Chaffinch (Fringilla coelebs)
5221
  Show phenology  European Greenfinch (Carduelis chloris)
25
  Show phenology  European Goldfinch (Carduelis carduelis)
309
  Show phenology  Common Linnet (Carduelis cannabina)
2181
  Daily total
1
migrant
5
migrants
20
migrants
418
migrants
96
migrants
403
migrants
17
migrants
192
migrants
6
migrants
143
migrants
16
migrants
15
migrants
9
migrants
2
migrants
1
migrant
1081
migrants
2209
migrants
1
migrant
69
migrants
997
migrants
 Other species
Total
   Eurasian Sparrowhawk (Accipiter nisus)
12
   Booted Eagle (Aquila pennata)
-
   Common Kestrel (Falco tinnunculus)
7
   Eurasian Curlew (Numenius arquata)
-
   Dunnock (Prunella modularis)
7
   Ring Ouzel (Turdus torquatus)
3
   Eurasian Blue Tit (Cyanistes caeruleus)
28
   Great Tit (Parus major)
9
   Western Jackdaw (Corvus monedula)
37
   Rook (Corvus frugilegus)
26
   Carrion Crow (Corvus corone)
9
   unidentified Finch (Fringillidae sp.)
417
   Eurasian Siskin (Carduelis spinus)
217
   Eurasian Bullfinch (Pyrrhula pyrrhula)
4
   Common Reed Bunting (Emberiza schoeniclus)
5
   Corn Bunting (Emberiza calandra)
22
  Daily total
2
migrants
+ 1 possibly local
1
migrant
+ 1 reverse migrant
3
migrants
1
migrant
8
migrants
3
migrants
20
migrants
12
migrants
9
migrants
328
migrants
90
migrants
1
migrant
3
migrants
4
migrants
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