Common bottlenose dolphin

Tursiops truncatus Today, 3 October

JanFebMarAprMayJunJulAugSepOctNovDec

now young out of the den 58 days

young out of the den Mammal here all year

The whole year

1 October – 30 November

the coastal calendar, unshifted

Sitting the year outGetting readyYoung aboutYoung leaving

Where to look

Channels between the islands, most often in the two hours after sunrise.

Worth knowing

Twelve-month gestation means calving and mating overlap in the same summer, which is why the phases below cross. A calf stays with its mother three to six years — far longer than anything else on this page.

Look it up

photos, sightings and recordings, off this site

iNaturalist — photos and where people are seeing it Wikipedia — Tursiops truncatus

Regions

where this species is on the list

Dalmatian coastKvarner and IstriaVelebit and the DinaridesSlavonia and the Pannonian plainTukhlia, Ukrainian Carpathians

Phase by phase

dates as they fall in the region chosen above

Phase	When	Length	What it means
going about the year	1 December – 31 March	121 days	Feeding, holding territory, doing nothing the calendar singles out.
courting	1 April – 14 May	44 days	Song, display, fighting, scent-marking — pairs forming or reaffirming. Gestation runs a full year, so pregnancy is not a season here — it is most of the year.
raising young	15 May – 30 September	139 days	Dependent young in the nest, den or burrow, being fed.
young out of the den	1 October – 30 November	61 days	Young out of the nest or den, but still fed and followed by the adults.

Other mammals in this region

Beech martenEdible dormouseEuropean badgerEuropean hareGolden jackalGrey wolfLesser horseshoe batNorthern white-breasted hedgehogRed foxRoe deerWild boar

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