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