Martin Willis / Olive-backed Sunbird (Cinnyris jugularis), Magnetic Island, Queensland, Australia

D. Parer & E. Parer-Cook / Olive-backed Sunbird (Cinnyris jugularis) female building nest, Pioneer Valley, Mackay, Queensland, Australia

Greg Oakley / Olive-backed Sunbird (Cinnyris jugularis) male, Queensland, Australia

Greg Oakley / Olive-backed Sunbird (Cinnyris jugularis) female, Queensland, Australia

Bob Steele / Olive-backed Sunbird (Cinnyris jugularis) female, Kaeng Krachan, Thailand

Jan Wegener / Olive-backed Sunbird (Cinnyris jugularis) singing male, Queensland, Australia

Juergen Freund / Female Olive-backed / Yellow-bellied Sunbird in her nest (Cinnyris jugularis) Australia.

Sue Flood / Olive-backed Sunbird (Cinnyris jugularis) male, Ocean Dunes Golf Course, Phan Thiet, Vietnam.

Martin Willis / Olive-backed Sunbird (Cinnyris jugularis) male feeding on nectar, Townsville, Queensland, Australia

Martin Willis / Olive-backed Sunbird (Cinnyris jugularis) female building nest, Townsville, Queensland, Australia

Konrad Wothe / Olive-backed Sunbird (Cinnyris jugularis) female, India

Martin Willis / Olive-backed Sunbird (Cinnyris jugularis) male perched on flower, Townsville, Queensland, Australia