Charlie Summers / Southern double-collared sunbird (Cinnyris chalybeus) feeding upside down in Jacaranda tree, Baviaanskloof, South Africa, November

Charlie Summers / Southern double-collared sunbird (Cinnyris chalybeus) feeding in Jacaranda tree, Baviaanskloof, South Africa, November

Cyril Ruoso / Jacaranda flowers fallen on the tropical rainforest floor, Barro Colorado Island, Gatun Lake, Panama Canal, Panama.

Konrad Wothe / Two Rainbow lorikeets (Trichoglossus haematodus), one perched upside-down in flowering Jacaranda tree, Atherton Tablelands, Queensland, Australia, October

Konrad Wothe / Rainbow Lorikeet (Trichoglossus haematodus) trio in Jacaranda (Jacaranda mimosifolia), Atherton Tableland, Queensland, Australia

Konrad Wothe / Rainbow Lorikeet (Trichoglossus haematodus) pair in Jacaranda (Jacaranda mimosifolia), Atherton Tableland, Queensland, Australia

Derek Galon / Blue jacaranda (Jacaranda mimosifolia) in bloom, Dominica, Eastern Caribbean. May 2019.