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Wednesday, December 7th, 2022
technews
Pictures: now uploadable in unlimited size
posted by Hans Schmid
 
Thursday, December 1st, 2022
avinews
Birds
Last field season at the Ticino Winter Atlas
posted by Hans Schmid
 
Tuesday, November 29th, 2022
avinews
Influx of Kittiwakes
posted by Hans Schmid
 
Thursday, November 24th, 2022
avinews
Birds
Communication of the Swiss Rarities Committee
posted by Bernard Volet
 
Wednesday, November 23rd, 2022
avinews
Birds
European Breeding Bird Atlas as a Christmas present
posted by Sämi Wechsler
 
Wednesday, November 16th, 2022
tipnews
Birds
How to document a rare bird sighting?

On ornitho.ch, some sightings are marked with a yellow triangle with an exclamation mark. This means that they are out of the ordinary and must be documented. It is either a rare species, or an unusual date or location of observation.

The forms for documenting these observations can be filled in directly on ornitho.ch. They are then examined by the Swiss rarities Committee, a group of experts who consider whether the observation is sufficiently documented to be taken into account in the scientific literature.

On ornitho.ch, the online form appears automatically when a sighting needs to be documented. If you use NaturaList, you will see these observations on your ornitho.ch homepage, under the heading "My records without rarity report".

If you are lucky enough to encounter a rare bird, take the time to document your sighting. Photos and videos, even of average quality, as well as recordings (with your smartphone, the video mode is generally sufficient for this) are naturally very useful evidence, but they are not obligatory. If these documents are not available, or if they do not show the essential criteria, it is important to describe in detail what you have observed.

Use the "Description" field to do this, noting first in a few words how you found the bird and what its behaviour was. If you did not find the bird yourself but know who it is, mention this. Then describe the bird, starting with its size in comparison to the species next to it or to common species. Include all the details you observed (the bill, its length, shape and colour, the pattern of the head, back, wings, underside, tail, rump and under tail, length and colour of the legs, a sketch can also be very useful) and transcribe as much as possible of the calls or song. Also mention which of the determination criteria could not be seen. If the species is similar to one or more other species, make the differential diagnosis: note why it is the rare species and not the other similar species.

In the "Identification" section, mention in the "Experience with species" box whether you have seen this rare bird before (if so, where and how many times?) or if it is the first time.

As a general rule, the responsibility for documenting an unusual sighting lies with the person who discovered the bird. If the bird is staying, it is also important to document the last date of observation. Similarly, it is necessary to document additional individuals if the number varies, as well as sightings of the bird at a new location.

Thanking you for your cooperation, we wish you many pleasant surprises in the coming months!

posted by Bernard Volet
 
Thursday, November 10th, 2022
tipnews
Birds
Observation of ringed birds
posted by Bernard Volet
 
Thursday, November 3rd, 2022
avinews
InfoSpecies 2023 online course programme
posted by Bernard Volet
 
Friday, October 28th, 2022
avinews
Birds
Bulletin of the Ornithological Information Service from the Swiss Ornithological Institute
posted by Bernard Volet
 
Thursday, October 27th, 2022
avinews
Birds
posted by Bernard Volet
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