Buff-thighed Puffleg (Haplophaedia assimilis) [XC44399]
by Joseph Tobias and Nathalie Seddon from Urpuma, Sandillani, PNN Cotapata, La Paz, Bolivia (call, churrs feeding in flight)
Buff-thighed Puffleg (Haplophaedia assimilis) [XC3454]
by Myornis from Manu road between Pillahuata and San Pedro, Cusco, Peru (call)
Subspecies
Genus sometimes merged into Eriocnemis. Also considered to be close to Urosticte and Ocreatus. May form superspecies with Greenish Puffleg (Haplophaedia aureliae) and they are usually considered conspecific, but plumage differences, together with disjunct distributions, support their treatment as separate species.
The following 2 subspecies are recognised:
affinis (Taczanowski, 1884) - Eastern Andes of northern and central Peru.
assimilis (Elliot, 1876) - Southern Peru and north-western Bolivia.