1. Alderson GW, Gibbs HL, Sealy SG (1999) Parentage and kinship studies in an obligate brood parasitic bird, the brown-headed cowbird (Molothrus ater), using microsatellite DNA markers. Anim Behav 58:895–905
2. Applied Biosystems (2001a) GENOTYPER. Applied Biosystems, Foster City
3. Applied Biosystems (2001b) GENESCAN. Applied Biosystems, Foster City
4. Beyer HL (2004) Hawth’s analysis tools for ArcGIS, version 3.26. http://www.spatialecology.com/htools
5. Birkhead TR, Møller AP (1992) Sperm competition in birds: evolutionary causes and consequences. Academic, London