Richard Du Toit / Greater Double-collared Sunbird (Nectarinia afra) male on Pincushion (Leucospermum sp) flower, Western Cape, South Africa

Steven David Miller / Olive-backed sunbird (Nectarinia jugularis) female returning to her nest with nesting material, Cape Hillsborough National Park, Queensland, Australia, September.

Steven David Miller / Olive-backed Sunbird (Nectarinia jugularis) female in her nest, Cape Hillsborough National Park, Queensland, Australia, September.

Ann & Steve Toon / Malachite sunbird (Nectarinia famosa) feding at flower, Kirstenbosch National Botanical Garden, Cape Town, South Africa, September

Ann & Steve Toon / Orange-breasted sunbird (Anthobaphes violacea), Kirstenbosch National Botanical Garden, Cape Town, South Africa, September

Melvin Grey / Variable sunbird (Nectarinia venusta) adult male on Hibiscus flower, Nairobi, Kenya

Ole Jorgen Liodden / Red-chested Sunbird (Cinnyris erythrocercus) backlit on flower, Rwanda.

Kevin Schafer / Southern Double-collared Sunbird (Cinnyris chalybeus) male on Pincushion (Leucospermum sp) protea flower, Kirstenbosch Garden, Cape Town, South Africa

Martin Willis / Southern Double-collared Sunbird (Cinnyris chalybeus) on Rocket Pincushion (Leucospermum reflexum) flower, Kirstenbosch Garden, Cape Town, South Africa

Richard Du Toit / Malachite sunbird {Nectarinia famosa} male feeding from flowers, South Western Cape, South Africa

Oscar Dewhurst / Long-billed sunbird (Cinnyris lotenius) nectaring on flowers. Goa, India. September.

Richard Du Toit / Amethyst Sunbird (Nectarinia amethystina) male on Pincushion (Leucospermum sp) flower, Western Cape, South Africa