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Annual reports : Bois de Cise, 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 Saturday, February 20th, 2021 until Sunday, April 25th, 2021

Number of days of migration watch : 9
Number of hours of migration watch : 26h40

Number of birds : 9709
Sunday  2021 06h35-14h00 06h35-14h00 - Duration : 07h25 
Waxing Gibbous (13 days) : Moonrise at 18h53 and moonset at 6h20
Sun : sunrise at 06h39 and sunset at 21h04
Day : dawn at 06h04 and dusk at 21h40
Comments :
06h35-07h00 : Météo : très frais du fait du vent de NE affirmé : 3 à 4 Bft. Nébulosité nulle. Observateurs : Thierry Rigaux (dès 6h35) puis avec François Méranger, puis Rodolphe Benmouhoub. NB : les données présentées ici sont des minima en deçà de la réalité du flux pour les Goélands bruns, non suivis en permanence. Les mouvements (modestes) de G argentés et Mouettes rieuses ne sont pas comptés. Pour les argentés, difficile de faire la part des choses entre mouvements locaux et mouvements de migrateurs.
 The most significant species
Total
 Show the data Show phenology Common species Great Cormorant (Phalacrocorax carbo)
121
 Show the data Show phenology Common species Eurasian Spoonbill (Platalea leucorodia)
244
 Show the data Show phenology Common species Western Marsh Harrier (Circus aeruginosus)
16
 Show the data Show phenology Common species Eurasian Sparrowhawk (Accipiter nisus)
11
 Show the data Show phenology Common species Common Kestrel (Falco tinnunculus)
13
 Show the data Show phenology Common species Merlin (Falco columbarius)
7
 Show the data Show phenology Common species Eurasian Hobby (Falco subbuteo)
6
 Show the data Show phenology Common species Whimbrel (Numenius phaeopus)
17
 Show the data Show phenology Common species Lesser Black-backed Gull (Larus fuscus)
275
 Show the data Show phenology Common species Common Wood Pigeon (Columba palumbus)
837
 Show the data Show phenology Common species European Turtle Dove (Streptopelia turtur)
1
 Show the data Show phenology Common species Common Cuckoo (Cuculus canorus)
-
 Show the data Show phenology Common species Common Swift (Apus apus)
1065
 Show the data Show phenology Common species Sand Martin (Riparia riparia)
395
 Show the data Show phenology Common species Barn Swallow (Hirundo rustica)
775
 Show the data Show phenology Common species Common House Martin (Delichon urbicum)
120
 Show the data Show phenology Common species Tree Pipit (Anthus trivialis)
31
 Show the data Show phenology Common species Meadow Pipit (Anthus pratensis)
1635
 Show the data Show phenology Common species Western Yellow Wagtail (Motacilla flava)
1151
 Show the data Show phenology Common species White Wagtail (Motacilla alba)
109
 Show the data Show phenology Common species Common Starling (Sturnus vulgaris)
70
 Show the data Show phenology Common species European Serin (Serinus serinus)
1
 Show the data Show phenology Common species European Goldfinch (Carduelis carduelis)
891
 Show the data Show phenology Common species Eurasian Siskin (Carduelis spinus)
69
 Show the data Show phenology Common species Common Linnet (Carduelis cannabina)
427
 Show the data Show phenology Common species Hawfinch (Coccothraustes coccothraustes)
12
  Daily total
113
migrants
104
migrants
4
migrants
1
migrant
1
migrant
2
migrants
4
migrants
2
migrants
100
migrants
8
migrants
1
migrant
+ 1 not going through
716
migrants
101
migrants
388
migrants
79
migrants
1
migrant
54
migrants
314
migrants
12
migrants
1
migrant
1
migrant
298
migrants
11
migrants
107
migrants
2
migrants
 Other species
Total
 Show the data Common species Common Shelduck (Tadorna tadorna)
3
 Show the data Common species Little Egret (Egretta garzetta)
2
 Show the data Common species Great Egret (Casmerodius albus)
1
 Show the data Common species Common Buzzard (Buteo buteo)
1
 Show the data Common species Common Redshank (Tringa totanus)
47
 Show the data Common species Common Greenshank (Tringa nebularia)
4
 Show the data Common species Green Sandpiper (Tringa ochropus)
5
 Show the data Common species Wood Sandpiper (Tringa glareola)
2
 Show the data Common species Great Black-backed Gull (Larus marinus)
3
 Show the data Common species Caspian Tern (Hydroprogne caspia)
4
 Show the data Common species Carrion Crow (Corvus corone)
21
 Show the data Common species Common Redpoll (Carduelis flammea)
52
  Daily total
3
migrants
2
migrants
1
migrant
+ 1 possible migrant
29
migrants
1
migrant
1
migrant
2
migrants
3
migrants
4
migrants
2
migrants
49
migrants
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