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Annual reports : Phare de Gatteville, 2022
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 Wednesday, January 5th, 2022 until Tuesday, March 22nd, 2022

Number of days of migration watch : 6
Number of hours of migration watch : 22h00

Number of birds : 6943
Tuesday  2022 07h30-11h30- Duration : 04h00 
Waning Gibbous (19 days) : Moonrise at 0h18 and moonset at 8h56
Sun : sunrise at 07h02 and sunset at 19h21
Day : dawn at 06h30 and dusk at 19h53
 The most significant species
Total
  Show phenology  Black Scoter (Melanitta nigra)
51
  Show phenology  Loon, unidentified (Gavia sp.)
105
  Show phenology  Red-throated Loon (Gavia stellata)
104
  Show phenology  Northern Gannet (Morus bassanus)
3599
  Show phenology  Great Cormorant (Phalacrocorax carbo)
76
  Show phenology  European Shag (Phalacrocorax aristotelis)
116
  Show phenology  Eurasian Curlew (Numenius arquata)
1
  Show phenology  Mediterranean Gull (Larus melanocephalus)
217
  Show phenology  Common Gull (Larus canus)
7
  Show phenology  Lesser Black-backed Gull (Larus fuscus)
1
  Show phenology  Great Black-backed Gull (Larus marinus)
27
  Show phenology  Black-legged Kittiwake (Rissa tridactyla)
489
  Show phenology  Sandwich Tern (Sterna sandvicensis)
6
  Show phenology  Razorbill (Alca torda)
80
  Show phenology  Razorbill / Common Murre (Uria aalge / Alca tor...)
1853
  Daily total
32
migrants
13
migrants
6
migrants
529
migrants
29
migrants
25
migrants
1
migrant
10
migrants
5
migrants
1
migrant
17
migrants
4
migrants
4
migrants
1
migrant
14
migrants
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