Yellow-legged
Gull - Larus michahellis
(last update: October 08 2013)
Coordinators:
Delfín González
Gabriel Martín
Antonio Gutierrez
Amir Ben Dov
Mars Muusse
Yellow-legged Gull michahellis x Great Black-backed Gull marinus hybrid, 1CY - adult, May 2010 - December 2021, Frankfurt, Germany.
On the roof of Posthof near Frankfurt Central Station, an interesting colony, interesting both in location and in compostion, developed over the lats few years, and much of this development has been the subject in contributions of HGON - Birdnet. Three new gull species of breeding birds were added to the list of Hesse in recent years.
First, in 2008, the first pair of Herring Gulls started breeding.
Since 2009, a Great Black-backed Gull nested successfully with a Yellow-legged Gull, and in fact this is the first evidence of hybridization of both species at all.
In 2013, Caspian Gull (or a Caspian Gull hybrid) was recorded here, which also reared two youngs in a mixed breeding with Yellow-legged Gull.
Several of these hybrids birds were not ringed, but they did turn up in and around the colony after fledging.
This webpage illustrates at least two of these birds.
Yellow-legged Gull michahellis x Great Black-backed Gull marinus hybrid, adult, December 2021, Frankfurt, Germany. Picture: Ingo Rösler.
Yellow-legged Gull michahellis x Great Black-backed Gull marinus hybrid, adult, December 2020, Frankfurt, Germany. Picture: Ingo Rösler.
Yellow-legged Gull michahellis x Great Black-backed Gull marinus hybrid, adult, June 2020, Frankfurt, Germany. Picture: Ingo Rösler.
Yellow-legged Gull michahellis x Great Black-backed Gull marinus hybrid, sub-adult, March 2017, Frankfurt, Germany. Picture: Ingo Rösler.
Yellow-legged Gull michahellis x Great Black-backed Gull marinus hybrid, sub-adult, November 2016, Frankfurt, Germany. Picture: Ingo Rösler.
Yellow-legged Gull michahellis x Great Black-backed Gull marinus hybrid, 3CY, June 2016, Frankfurt, Germany. Picture: Ingo Rösler.
Yellow-legged Gull michahellis x Great Black-backed Gull marinus hybrid, 3CY, May 2016, Frankfurt, Germany. Picture: Ingo Rösler.
Yellow-legged Gull michahellis x Great Black-backed Gull marinus hybrid, 2CY, June 2016, Frankfurt, Germany. Picture: Ingo Rösler.
Yellow-legged Gull michahellis x Great Black-backed Gull marinus hybrid, 1CY, June 2010, Frankfurt, Germany. Picture: Martin Gottschling.
Yellow-legged Gull michahellis x Great Black-backed Gull marinus hybrid, pullus, May 2012, Frankfurt, Germany. Picture: Ingo Rösler.
Yellow-legged Gull michahellis x Great Black-backed Gull marinus hybrid, pulli, May 2010, Frankfurt, Germany. Picture: Ingo Rösler.
