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Latest news
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Wednesday, July 21st, 2021
avinews
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
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
 
Tuesday, March 16th, 2021
avinews
Birds
Grey Heron: Please count and report colony size now

The breeding period of grey herons is already in full swing. It is now and especially during April (but still before the leaves shoot!) the best time to find colonies and count the number of occupied nests.

The Swiss Ornithological Institute uses observations reported via ornitho.ch to document the development of the grey heron (see index). We are grateful if you try to count the number of occupied nests in known colonies and report this through ornitho.ch. We are also dependent on you to detect any new colonies: Grey herons flying into the edge of a forest can be a promising indication. In order make your data most valuable to science, please report colonies as accurately as possible (precise location) and fill in the number of occupied nests in the colony tool.

Thank you very much for your collaboration!

Swiss Ornithological Institute

posted by Bernard Volet
 
Thursday, March 11th, 2021
tipnews
Mammals
Stoat and time of molting
posted by Simon Capt
 
Thursday, February 18th, 2021
avinews
Birds
posted by Bernard Volet
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