A parent bird arrives to feed then takes away a fecal sac to clean the nest from the nestlings' waste, Olive-backed Sunbird Cinnyris jugularis, Thailand

nest nestlings nesting passeriformes fecal sac twigs sunbird cinnyris jugularis fledgling olivebacked sunbird nature birds songbird feeding nectariniidae habitat forest fly wings jungle rainforest feathers animals bill season national parks yellowbellied small asia thailand yellow