Ann & Steve Toon / Cape sugarbird (Promerops cafer) among yellow Pincushion (Leucospermum cordifolium) flowers, Kirstenbosch Botanical Gardens, Cape Town, South Africa, September.

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

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,...

Ann & Steve Toon / Orange-breasted sunbird (Anthobaphes violacea) female on Leucospermum cordifolium 'Yellow Bird' Kirstenbosch National Botanical Garden, Cape Town, South Africa, September

Ann & Steve Toon / Cape sugarbird (Promerops cafer) feeding from Pincushion (Leucospermum cordifolium) flower, Kirstenbosch Botanical Gardens, Cape Town, South Africa, September.

Ann & Steve Toon / Pincushion protea (Leucospermum cordifolium), Kirstenbosch Botanical Gardens, Cape Town, South Africa

Martin Willis / Cape Sugarbird (Promerops cafer) on Pincushion (Leucospermum cordifolium) flower, Kirstenbosch Garden, Cape Town, South Africa

Martin Willis / Cape Sugarbird (Promerops cafer) on Pincushion (Leucospermum cordifolium) flower, Kirstenbosch Garden, Cape Town, South Africa

Tony Phelps / Pincushion plant (Leucospermum cordifolium) in flower, De Hoop NR, Western Cape, South Africa, July