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

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

Gerry Ellis / Cape Sugarbird (Promerops cafer) male perching on Protea flowers (Mimetes protea), Kirstenbosch Garden, South Africa

Ann & Steve Toon / Cape sugarbird (Promerops cafer), Kirstenbosch National Botanical Garden, Cape Town, South Africa.

Ann & Steve Toon / Cape sugarbird (Promerops cafer), Kirstenbosch National Botanical Garden, Cape Town, South Africa.

Heather Angel / Southern double-collared sunbird (Cinnyris chalybeus), male nectaring on Pincushion protea (Leucospermum cordifolium). Kirstenbosch National Botanical Garden, Cape Town, South Africa. August.

Heather Angel / Cape sugarbird (Promerops cafer) male nectaring on Pincushion protea (Leucospermum cordifolium). Pollen transferred from anthers to bird's head. Kirstenbosch National Botanical Garden, Cape Town,...

Heather Angel / Orange breasted sunbird (Anthobaphes violacea), male nectaring on Heather (Erica sp). Kirstenbosch Botanic Garden, Cape Town, South Africa. February

Ann & Steve Toon / Cape bulbul (Pycnonotus capensis) feeding on flowers, Kirstenbosch Botanical Gardens, Cape Town, South Africa, September

Ann & Steve Toon / Cape sugarbird (Promerops cafer) on king protea, Kirstenbosch National Botanical Garden, Cape Town, South Africa, September