have the potential to influence individual
behaviour, reproduction and/or survival. One
of the least frequently observed and least known injuries in birds is
sublingual fistulation, which has only been reported in four species to date.
Audouin’s Gull Larus audouinii is now added to this list. Based on
periodical re-sightings of darvic-ringed gulls at four Mediterranean sites, the
prevalence of this injury in Audouin’s Gulls was estimated to be 0.13%. No
negative effects of fistulas on short-term survival of injured birds were
reported; the minimum survival period was 999 days. However, our findings
should be treated cautiously
because of the low detected incidence of this injury in free-living birds.
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