Slender-billed gull
Chroicocephalus genei (Brème, 1839)
Status not recordedbirds
The slender-billed gull (Chroicocephalus genei) is a species in the family Laridae, order Charadriiformes. Recorded adults weigh 236 g to 281 g and live up to 31.7 years.

Quick facts about the slender-billed gull
- Weight
- 236 g – 281 gsrc for Weight
- Length
- Not recorded
- Wingspan
- 94 cm – 1.1 msrc for Wingspan
- Lifespan
- 31.7 yearssrc for Lifespan
- Diet
- Aquatic predatorsrc for Diet
- Longest recorded lifespan
- 31.7 years
- Main food
- Not recorded
- Habitat
- coastalsrc for Habitat
- Young per litter or clutch
- 2.2 – 2.4src for Young per litter or clutch
- Age at maturity
- 2 yearssrc for Age at maturity
- Lifestyle
- Generalistsrc for Lifestyle
- Migration
- Partialsrc for Migration
- Conservation status
- Not recorded
- Countries on record
- Not recorded
How big is the slender-billed gull?
Photos of the slender-billed gull
Only freely licensed photos are shown. Each carries its creator and licence.

Where does the slender-billed gull live?
Not recorded
What is the slender-billed gull?
The slender-billed gull (Chroicocephalus genei) is a mid-sized gull which breeds very locally around the Mediterranean and the north of the western Indian Ocean (e.g. Pakistan) on islands and coastal lagoons. Most of the population is somewhat migratory, wintering further south to as far as North Africa and India. A few birds have wandered to western Europe. A vagrant individual was reportedly seen on Antigua, April 24, 1976 (AOU, 2000).
The genus name Chroicocephalus is from Ancient Greek khroizo, "to colour", and kephale, "head". The specific genei commemorates Italian naturalist Giuseppe Gené.
From the Wikipedia article “Slender-billed gull” (en.wikipedia.org/w/index.php?title=Slender-billed_gull&oldid=1315196295), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
Is the slender-billed gull endangered?
No conservation assessment is recorded for this species in our sources. That is not the same as being safe: it has not been matched to an assessment.
How is the slender-billed gull classified?
- kingdomAnimalia
- phylumChordata
- classAves
- orderCharadriiformes
- familyLaridae
- genusChroicocephalus
- SpeciesChroicocephalus genei (Brème, 1839)
Synonyms Chroicocephala genei, Larus galastes, Larus gelastes, Larus genei, Larus genei, Larus tenuirostris
Other names and names in other languages (62)
- DunbekmeeuAfrikaans
- نورس قرقطيArabic
- نورس مستدق المنقارArabic
- نورس نحيل المنقارArabic
- Танкадзюбая чайкаBelarusian
- Дългоклюна чайкаBulgarian
- Дебелоклюна чайкаBulgarian
- Тънкоклюна чайкаBulgarian
- Gouelan beg moanBreton
- gavina capblancaCatalan
- racek tenkozobýCzech
- Tyndnæbbet MågeDanish
- DünnschnabelmöweGerman
- ΡοδόγλαροςGreek
- Λεπτόραμφος γλάροςGreek
- stretbeka mevoEsperanto
- Maldikbeka mevoEsperanto
- Gaviota picofinaSpanish
- salenokk-kajakasEstonian
- کاکایی صورتیPersian
- kaitanokkalokkiFinnish
- Goéland railleurFrench
- Mouette railleuseFrench
- Faoileán gobchaolIrish
- Foillan gob-keylManx
- שחף צר-מקורHebrew
- שחף צר מקורHebrew
- vékonycsőrű sirályHungarian
- BleikmáfurIcelandic
- gabbiano roseoItalian
- ハシボソカモメJapanese
- Теңіз шағаласыKazakh
- 긴목갈매기Korean
- laibasnapis kirasLithuanian
- tievknābja kaijaLatvian
- тенкоклун галебMacedonian
- സൂചീമുഖി കടൽക്കാക്കMalayalam
- पातळ चोचीचा कुरवMarathi
- dunbekmeeuwDutch
- smalnebbmåkeNorwegian
- mewa cienkodziobaPolish
- gaivota-de-bico-finoPortuguese
- Pescăruş rozalbRomanian
- Pescăruș RozalbRomanian
- pescăruşul cu cioc subţireRomanian
- морской голубокRussian
- SeagganjunbáiskiNorthern Sami
- čajka tenkozobáSlovak
- zalivski galebSlovenian
- pulëbardha rozëAlbanian
- pulëbardha sqepgjatëAlbanian
- Tankokljuni galebSerbian
- Танкокљуни галебSerbian
- långnäbbad måsSwedish
- smalnäbbad måsSwedish
- นกนางนวลปากเรียวThai
- ince gagali martiTurkish
- İnce Gagalı MartıTurkish
- Мартин тонкодзьобийUkrainian
- רױזן־מײװYiddish
- 細嘴鷗Chinese
- 细嘴鸥Chinese
Relatives of the slender-billed gull
Other species in the same genus Chroicocephalus.

Black-headed gull
Chroicocephalus ridibundus

Brown-headed gull
Chroicocephalus brunnicephalus

Silver gull
Chroicocephalus novaehollandiae

Bonaparte's gull
Chroicocephalus philadelphia

Andean gull
Chroicocephalus serranus

Grey-headed gull
Chroicocephalus cirrocephalus
CompareSlender-billed gull vs Black-headed gullSlender-billed gull vs Brown-headed gullSlender-billed gull vs Silver gullSlender-billed gull vs Bonaparte's gull
Common questions
Answered only where our data holds the answer.
How big is the slender-billed gull?
An adult slender-billed gull weighs 236 g – 281 g and has a wingspan of 94 cm – 1.1 m, according to values recorded on Wikidata.
How long does the slender-billed gull live?
The slender-billed gull has a recorded lifespan of 31.7 years.
What kind of animal is the slender-billed gull?
The slender-billed gull (Chroicocephalus genei) belongs to the family Laridae in the order Charadriiformes.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1 - AVONET: morphological, ecological and geographical data for all birds · CC BY 4.0 · v7
Tobias, J.A. et al. (2022) AVONET: morphological, ecological and geographical data for all birds. Ecology Letters 25: 581–597. https://doi.org/10.1111/ele.13898. Data: https://doi.org/10.6084/m9.figshare.16586228.v7 - Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence). - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Slender-billed gull (Chroicocephalus genei). Retrieved from https://creaturedata.com/animals/slender-billed-gull
“Slender-billed gull (Chroicocephalus genei).” CreatureData, 2026, https://creaturedata.com/animals/slender-billed-gull.
@misc{slender_billed_gull_2026,
title = {Slender-billed gull (Chroicocephalus genei)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/slender-billed-gull},
note = {Data as of 2026-11-11}
}