Onderzoek

Geelschouderwida

| (Euplectes macrourus macrocercus)

Udo M. Savalli, Widowbird Research Description
Savalli, U.M. 1994. Tail length affects territory ownership in the yellow–shouldered widowbird
Savalli, U.M. 1994. Mate choice in the yellow–shouldered widowbird: correlates of male attractiveness
Savalli, U.M. 1995. The evolution of tail–length in widowbirds (Ploceidae): tests of alternatives to sexual selection
Savalli, U.M. 1995. Does rainfall constrain the evolution of tail length in widowbirds?
Savalli, U.M. 1997. The role of male territories in the mating system of the Yellow–shouldered Widowbird

Hanenstaartwida

| (Euplectes progne)

Koekoekswever

| (Anomalospiza imberis)

Lathi, D.C. et al., 2002. Morphological and behavioural evidence of relationships of the Cuckoo Finch