map of sunderland , wallace line
the global population size has not been quantified, species described rare in thailand, common in peninsular malaysia , sumatra, rather scarce in sarawak , uncommon in singapore, indonesia, sarawak, sabah , brunei. current population trend shows decline in number of red-naped trogons @ moderately rapid rate, owing habitat loss , degradation throughout distribution range.
number of mature individuals = unknown
extreme population fluctuations = no
continuing decline of mature individuals = yes
population severely fragmented = no
all individuals in 1 subpopulation = no
continuing decline in subpopulations = unknown
extreme population fluctuations in subpopulations = no
^ [1], campbell, b , lack, e (2011) dictionary of birds , (108th ed)a&c black.
^ [2], alerstam, thomas , christie, david (1993), bird migration , cambridge university press, isbn 0-521-44822-0.
^ [3], remsen, j.v. (2014), hbw , birdlife international illustrated checklist of birds of world , journal of field ornithology, volume 1(86):182-187.
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