Any idea which are the key impact pathways? Some decent papers to look at?
February 4, 2026 at 9:33 AM
Any idea which are the key impact pathways? Some decent papers to look at?
Interesting point Alex and in Wales it's 90% sheep pasture with little arable. However arable land is ca. 15% of the UK and I'm not sure that's changed much in the last 30 years so is it changes in chemical use?
February 4, 2026 at 9:11 AM
Interesting point Alex and in Wales it's 90% sheep pasture with little arable. However arable land is ca. 15% of the UK and I'm not sure that's changed much in the last 30 years so is it changes in chemical use?
Yes I agree. I think it's clear this bird is not identifiable - have you read the email reply from the author of the paper on this thread? That's his opinion too. Someone's gonna have to swim out with a ruler I think 🤔
February 1, 2026 at 11:30 AM
Yes I agree. I think it's clear this bird is not identifiable - have you read the email reply from the author of the paper on this thread? That's his opinion too. Someone's gonna have to swim out with a ruler I think 🤔
Yes I agree Andy. It's also interesting how little there is published about their ID. That one article seems to be it and that was based on analysing photos on ebird, not skins etc. Guillermo has replied already - here's my email and his reply. He agrees in summary.
January 31, 2026 at 5:48 PM
Yes I agree Andy. It's also interesting how little there is published about their ID. That one article seems to be it and that was based on analysing photos on ebird, not skins etc. Guillermo has replied already - here's my email and his reply. He agrees in summary.
It has too much white on the flanks to fall into the category of 'identifiable in the field' i.e. birds that are in the darkest 25% of Holbøll’s. I've emailed the author to see what he thinks 🤔 #ukbirding #birds
3 of 3🧵
3 of 3🧵
January 31, 2026 at 2:09 PM
It has too much white on the flanks to fall into the category of 'identifiable in the field' i.e. birds that are in the darkest 25% of Holbøll’s. I've emailed the author to see what he thinks 🤔 #ukbirding #birds
3 of 3🧵
3 of 3🧵
Having read this blog my view FWIW is that it ✅ some boxes for Holbøll’s - Size/structure, bill length/structure, extent of dark on the face esp. below the gape (see pics from others) BUT... 2 of 3 🧵https://subalpinebirding.com/blog/holblls-red-necked-grebe-revisited-are-they-doable-in-the-field
Holbøll’s Red-necked Grebe revisited: are they doable in the field? — subalpinebirding
The identification of Red-necked Grebe subspecies primarily relies on measurements, and most accepted records of the Nearctic taxon holbollii in Europe come from deceased individuals that were accur...
subalpinebirding.com
January 31, 2026 at 2:09 PM
Having read this blog my view FWIW is that it ✅ some boxes for Holbøll’s - Size/structure, bill length/structure, extent of dark on the face esp. below the gape (see pics from others) BUT... 2 of 3 🧵https://subalpinebirding.com/blog/holblls-red-necked-grebe-revisited-are-they-doable-in-the-field
Nice find Andy 👌 What were we talking about on Saturday ....
January 20, 2026 at 1:02 PM
Nice find Andy 👌 What were we talking about on Saturday ....