Asian bird black collar with white spots common dove introduced introduced species nuisance spots spotted spotted collar spotted dove spotted turtle-dove streptopelia chinensis widespread wild aggressive alert birds black brown colorful colourful hungry Indian mature mother myna birds Noisy roadside street watchful yellow young plumage ruffled ruffled feathers agricultural pest cactus fast-spreading food fruit glochids green fruit green. moisture nopales opuntia paddle cactus platyclades prickles prickly pear prickly pear cactus fruit spikes spines textures aggressive-grower allium-triquetrum Amaryllidaceae blooming blooms bulbous-flowering-plant edible flower-stalks flowering flowers garden green invasive leaves Mediterranean-import onion-weed plants profusion snowbell stalks three-cornered-leek white appearance Australian banknote banknote-features banknotes cash changes collectors color colored colors colour coloured colours currency decimal denominations dollars features finance five-dollars monetary monetary-value money New notes numismatics plastic potential replacing security success superceding superseding value values variations variety wealth abundance abundant agricultural-pest edible-prickly-pear fruiting green-fruit Indian-fig moisture opuntia-ficus-indica paddle-cactus perennial prickly-pear prickly-pear-cactus-fruit red ripe ripe-fruit weed