6th August

The sun rose behind a thick blanket of cloud with heavy rain battering the observatory windows.
By 7am the front had passed over was replaced by light cloud and a moderate breeze. A few nets were opened with the prospect of some grounded migrants. Unfortunately that was not the case. Sedge and Willow Warbler just about making double figures and a fly over Tree Pipit the best we could do.

The sea watching saved the day with at least four Cory's Shearwaters making an appearance during the morning. Also seen were 38 Balearic and 6 Manx Shearwaters, a flock of 35 Common Scoter, an Arctic Skua and a single Whimbrel

Last month, a few us were discussing Inaturalist and various other apps that allow you to identify flora and fauna from a single image. There are pros and cons to all of these things but used sensibly they can often be spot-on with their species identification. 

For those not familiar with these nature identification apps, there are many, Google Lens, Obsidentify, Seek, PictureThis etc. They all use pattern recognition technology to analyse your image of the natural world, be it, plant, bird, bug or animal and compare it to millions of similar images on the world wide web. It then gives you it's "best guess" at the species name or sometimes just the genus or family. A lot of the time this is very dependent on the quality of the image. It combines the image with the phones built in location services ability to prioritize the results that should be present in or around that location.  

Here is a link to video tutorial of how to use to the app in the field.


Another feature of Inaturalist is the ability for others to view your image and either agree with your identification or suggest another taxa. The Inaturalist database has over 90,000 species and the developers believe that 95% of all records are identified correctly.

Within Inaturalist you can also create a project. This collates sightings from a given area or date.
 These projects just sit in the background and when a sighting is added that occurs within the designated area it is automatically added.
Thus the "Portland Biodiversity Project" was born. We decided that historic records would be too haphazard so we set the project start date for the 1st January 2024. to include any sightings on the Isle of Portland. So far it's going well. We have 75 observers who have submitted 1331 observations of 724 individual species. If you're on Portland, download the app and give it a go.