Survey progress

To date, 219 survey sites have been registered from 44 countries for the African – Eurasian Shorebird Survey. The Covid-19 pandemic has greatly affected the participation in many countries including Greece, India, Turkey and others. The decreasing reporting rate needs to be analysed but in most cases, it is due to the pandemic and delayed reporting.

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Reporting performance in relation to the total number of registered survey sites. The chart was created on 25/06/2021. Click on the graph to see in full size.

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Reporting rate per survey weekends. The chart was created on 25/06/2021. Click on the graph to see in full size.

Dynamics of shorebird migration

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Migration dynamics of all shorebird spacies detected at selected survey sites.Click on the graph to see in full size.

Species frequency

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This cumulated species frequency graph represents the percentage of the occurrence of each species in the total number of reported locations across Europe. The following expression was used: n x 100/N (n = the number of checklists a shorebird species has been reported with the quantity greater than 0 and N = the total number of checklists submitted). The chart was created on 18/06/2021. Click on the graph to see in full size.

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Frequency of selected shorebird species at each survey weekend. The chart was created on 25/06/2021. Click on the graph to see in full size.

Habitat types

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Distribution of habitat types of all survey sites. Click on the graph to see in full size.

The 1% population threshold helps to identify important bird areas for a single species or bird communities. Population estimates are an important part of this selection process and wetlands international has been making these figures available from the mid-winter counts.

Based on the results of the January 2021 AESS, at least one survey site reached, and exceeded, the 1% threshold for the European population of Pied Avocet. The lagoons around Venice, Italy are known to be important for waterbirds and shorebirds what supports a significant number of Pied Avocets during winter. While counts from a single month and year are not enough to nominate a site, long-term data makes it possible to list is as a Shorebird Sites of International Significance (SSIS).

It is unquestionable that bird monitoring programs such as the African–Eurasian Shorebird Survey are a fundamental part of future conservation decisions.

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1% threshold of the European population of the Kentish Plover (Charadrius alexandrinus) compared to the surveyed numbers in January and February. The chart includes the Middle East what is questionably part of the European population however, a large part of the European population of the Kentish Plover winters in the Middle East where it mixes with the local breeding population. The breeding population figures of the Kentish Plover for the Middle East is not available yet so the threshold level might increase slightly. Click on the graph to see in full size
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Source: BirdLife International (2021) Species factsheet: Charadrius alexandrinus. Downloaded from http://www.birdlife.org on 19/02/2021.