Black-headed Gull

(Larus ridibundus)

Example 1
Date:	4 july 2001
Origin:	Found dead
Location:	Waddendijk, Schiermonnikoog, NL
Age and sex:	Juvenile
Feathers:	Rightwing (primaries) \| Rightwing (secundaries) \| Rightwing (greater primary coverts) \| Rightwing (greater coverts) \| Rightwing (alula) \| Tailfeathers

Example 2
Date:	19 june 2001
Origin:	Found dead
Location:	Willemsduin, Schiermonnikoog, NL
Age and sex:	Adult
Feathers:	Leftwing (primaries) \| Secundaries) \| Greater primary coverts) \| Alula \| Greater coverts \| Greater under primary coverts \| Greater underwing-coverts \| Tailfeathers

Example 3
Date:	30 march 1999
Origin:	Trafficvictim
Location:	Ossegraaf, Leuth, NL
Age and sex:	Firts winter
Feathers:	Tailfeathers

Example 4
Date:	20 may 1991
Origin:	Found dead
Location:	Millingerwaard, Kekerdom, NL
Age and sex:	Adult
Feathers:	Tailfeathers

Example 5
Date:	31 july 2003
Origin:	Found dead
Location:	De Mars, Zutphen, NL
Age and sex:	Adult
Feathers:	Rightwing (primaries) \| Rightwing (secundaries)

Example 6
Date:	1 july 1991
Origin:	Trafficvictim
Location:	Trintelhaven, Houtribdijk, Flevoland, NL
Age and sex:	Adult male
Feathers:	Leftwing (Primaries, secundaries & tertials) \| Tailfeathers

Example 7
Date:	22 july 1991
Origin:	Trafficvictim
Location:	Oostvaardersdijk, pl 24.0, NL
Age and sex:	second-year bird
Feathers:	Leftwing (Primaries, secundaries & tertials) \| Tailfeathers \| Lesser underwing-coverts

Example 8
Date:	22 july 1991
Origin:	Trafficvictim
Location:	Oostvaardersdijk, pl 17.4, NL
Age and sex:	Adult
Feathers:	Leftwingfeathers

Example 9
Date:	6 august 1991
Origin:	Trafficvictim
Location:	Oostvaardersdijk, pl 21.4, NL
Age and sex:	First-year bird
Feathers:	Rightwing (Primaries, secundaries & tertials) \| Greater primary coverts \| Greater coverts \| Tailfeathers