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Latest news
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Friday, September 17th, 2021
avinews
Birds
How to document a sighting?
posted by Bernard Volet
 
Tuesday, September 7th, 2021
technews
Query by troop size
posted by Sämi Wechsler
 
Tuesday, August 17th, 2021
tipnews
Birds
Which species should you count?
posted by Bernard Volet
 
Wednesday, July 21st, 2021
avinews
Birds
Communication of the Swiss Rarities Committee
posted by Bernard Volet
 
Friday, July 16th, 2021
tipnews
Birds
Atlas code in summer
posted by Bernard Volet
 
Friday, June 18th, 2021
tipnews
Birds
Sightings from mountainous regions
posted by Bernard Volet
 
Wednesday, May 19th, 2021
tipnews
Birds
Ducks families

At this time of year more and more ducks families are observed on lakes and rivers. Apart from Mallards, all kinds of wild ducks are monitored by the "monitoring of selected species" program for which the total number of brood is counted. In order to obtain an accurate synthesis at the end of the breeding season we need precise information. For these observations it is therefore important to mention specifically the number of families present and, for each family, the amount of chicks and their size has to be specified (remarks field). The following link gives indications on how to estimate the size of chicks relatively to the size of adults: Altersbestimmung bei Jungenten / Détermination de l'âge des canetons).

Thanks in advance for these precisions. They simplify the data analysis and the monitoring of rare species.

posted by Bernard Volet
 
Friday, May 7th, 2021
avinews
Precise sightings localization
posted by Bernard Volet
 
Wednesday, May 5th, 2021
avinews
Birds
Communication of the Swiss Rarities Committee
posted by Bernard Volet
 
Saturday, April 3rd, 2021
tipnews
Birds
Disturbance during the breeding period and pictures taken at nests
posted by Bernard Volet
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