Appearance
This hummingbird is sexually dimorphic, but only slightly. Both sexes are shining green above with a small white postocular spot and a blue-black tail. Their lower underparts are also shining green bordered above by a white pectoral collar. The male has a reddish pink throat that extends from the white collar to almost the base of the bill. The female has a black chin with white stripes and a smaller reddish pink throat patch.References:
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