Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
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.
I saw a blackheaded gull on the Thames in Marlow in mid-December which had almost a complete black cap. Two other individuals had substantially black caps. Is this normal at that time of year?
It isn't normal for December. Usually BH Gulls change the plumage during February. But I have to say that the color of the head it isn't black, it is dark brown. Black-headed Gulls have dark brown heads in the breeding plumage...There is another medim size gull which has a black head - the Mediterranean Gull.