A photo of a Slender-billed Gull (Chroicocephalus genei)
Slender-billed Gull

Slender-billed Gull

Chroicocephalus genei

The Slender-billed Gull, Chroicocephalus genei, presents a graceful figure, slightly larger than the familiar Black-headed Gull. It measures 37 to 40 cm in length with a wingspan stretching from 90 to 102 cm. Its plumage is a pale grey, complemented by a white head and breast, and accented with black tips on the primary wing feathers. The bird's head and dark red bill are elongated, contributing to its slender appearance, and it possesses a notably long neck. The legs are a matching dark red, while the iris of the eye is a striking yellow. During the summer months, one may observe a subtle pink blush upon its breast. This species attains full maturity over two years, typical for gulls. Juveniles can be identified by a black band at the tail's end and darker wing markings.

Identification Tips

To identify the Slender-billed Gull, look for its distinctive elongated head and bill, and the dark red coloration of both the bill and legs. The pale grey body contrasts with the white head and breast, and the black wingtip markings are a key feature. In flight, the bird's long neck and slender profile are particularly noticeable.

Habitat

This gull favors the lagoons and lakes in the vicinity of the Mediterranean Sea, as well as similar environments along the northwestern Indian Ocean. It is known to breed on islands and coastal lagoons, where the absence of predators and human disturbance allows for successful nesting.

Distribution

The Slender-billed Gull breeds very locally around the Mediterranean and the northern reaches of the western Indian Ocean, including Pakistan. It exhibits migratory behavior, wintering to the south as far as North Africa and India. Occasionally, individuals have been recorded as vagrants in western Europe and as far afield as Antigua.

Behaviour

The Slender-billed Gull is a sociable bird, especially in winter, when it can be seen feeding and roosting in groups. It is not an oceanic bird and is seldom observed far from land. It breeds in colonies, with nests on the ground, and feeds by diving from the air into the water to catch fish or by probing mud for invertebrates. The gull also captures insects mid-flight. After a 25-day incubation period, the young take their first flight approximately 25 days later.

Diet and Feeding

Fish comprise about half of this gull's diet. It employs a hunting strategy of flying over water and diving to capture prey. It also forages in mud for marine invertebrates and is adept at catching insects in the air. This species is also known to feed at landfill sites.

Conservation status

The Slender-billed Gull is classified as Least Concern by the IUCN. It is protected under the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA), ensuring international cooperation to safeguard its future.

Slender-billed Gull Sounds

Slender-billed Gull Call

00:19
Recorded by: © 
App logo
Birda is a birdwatching app and community aimed at curious people who want to deepen their connection with nature.
Download Birda on the Apple App StoreDownload Birda on the Google Play Store

Distribution of the Slender-billed Gull

Use two fingers to move the map
Use ctrl + scroll to zoom the map
Breeding Season
Non-breeding Season
Resident

Slender-billed Gulls on Birda

Birda Logo

Your birdwatching journey like never before

Connect with nature in minutes
Take a walk, look out of the window and log the birds that you see. Feel good about those little connections to nature.
Discover the joy of birding
Find new birding spots, see more birds, share and celebrate with a like-minded community of nature lovers.
Play your part in saving nature
Logging your birding sightings and sessions turns into positive action for our planet. Every sighting counts.
What Our Birders Say
Jake W
Great app
I use this app all the time as it’s quick and easy to log individual sightings or whole birding sessions. It’s an excellent way to meet new people and the forum is full of really friendly people. The challenges are a great way to get involved and learn more about birds. Cannot recommend it enough!
Alex J
Friendly and helps to identify birds
Great birding app, good for logging your sightings, also has nice species guide. I'm enjoying the social aspect more than I expected, everyone seems friendly and helps to identify unknown birds. Good mix of newbies and experienced users.
Patricia L
Very encouraging birding app
Easy to use, fun to see progress and encouraging to receive feedback from other users.
Carrie
Makes you want to spot birds more
I think this app is fun. It makes you want to spot birds more so I guess in a way it encourages you to get out and about instead of sitting in front of the TV.
Safira V
Birding and wellbeing app
Birda is an excellent platform to share your love of Birding and is a great tool of encouragement for a Birding Beginner like me. Birda has a very kind and supportive community of Birding enthusiasts. For me BIRDA is not only a BIRDING but also a WELLBEING App.
Hip An
Fantastic
Really enjoying Birda where I live i have a lot of Red kites really hard to photograph but I can video are you planning some place on the app where us Birda can post vids🦉🦅
Leonie
We've been waiting for an App like this
Excellent! We've been waiting for an app like this! Thank you! It would be nice if you could assign additional birds to sessions later!
Nedz53
Really useful
Downloaded to give it a try, everything worked perfectly, recorded my first bird watching walk. Very impressed. Have already recommended to friends!
Trevarthen1
Birda fan
I really enjoy using Birda, all sightings are recorded and photos can be added. There are monthly challenges which help to get you out to record your sightings. The Birda community are great and are happy to help with unidentified bird sightings. Suitable for all ages and experience!
EandB17
Terrific App for Birders
Downloaded Birda around the time my interest in birding was sparked, and it has been a terrific app to help me (1) share my experience, (2) document my sightings, and (3) learn more about birds in general. That said, I also believe Birda is a fantastic app for birders of all experience levels. Great community!
As featured in
BBC RadioABC NewsFox NewsForbesTimeoutAndroid CentralBirdWatching DailyPetapixel