Size28–30 cm tall, 400–500g — roughly the size of a pigeonLifespan25+ years in the wild (oldest recorded: 41 years)BeakMulti-coloured orange, red, blue-grey in summer; grey in winter — beak sheaths are shed after breedingDivingDives up to 60 metres, flapping wings underwater. Can hold 10–62 fish in one tripPartnerMates for life. Returns to the same burrow partner year after yearBurrowDigs own 1-metre burrow in grassy clifftops using feet and beak; same burrow reused for lifeDietSand eels (primary), sprats, herring, capelin. Hunts at sea up to 80km from colonyFlight speedUp to 88 km/h, beating wings 400 times per minuteChickOne egg per year. Chick (a "puffling") fledges after 45 days, leaves at night to avoid gullsConservationVulnerable (IUCN Red List). Population has declined 30% since 1970s. Climate change threatening sand eels. Puffin name in Icelandic: "Lundi"
Iceland hosts approximately 60% of the world's Atlantic puffin population — roughly 8–10 million breeding pairs. The country is the last major stronghold for this species, making responsible tourism critically important.