Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature currently requires accessing the site using the built-in Safari browser.
Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.
Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
Those are pine processionary (Thaumetopoea pityocampa) caterpillars. They defoliate pines and cedars and can cause severe allergies from their hairs blown by the wind. Great Spotted Cuckoos love them but people not so much
It's a common species also in the Balearic Islands where they came up with a brilliant solution - shooting the over-wintering nests with shotguns which, of course, spread the urticating hairs even more than usual! The government also spends vast amounts of money spraying the nests with a "targetted bacillus" - but the larvae are protected by the 'waterproof' silk webbing and it also has a knock-on effect on other 'non-target' species.