Updated: 5 January 1999


BIRDS OF THE RIO TAPICHE, LORETO, PERU

February-March 1997


R. H. Wiley, J. Bishop, T. Struhsaker


NOTES ON PROBLEMATIC SPECIES

Solitary Eagle -- status uncertain away from foothills of Andes -- flapped/sailed across neck of Lago Grande near Iberia -- entirely dark slate -- huge and heavy-set (estimated to exceed Osprey in bulk in nearly side-by-side comparison -- Great Black Hawk seen several times within days before and after) -- broad Buteo-like tail with one rather narrow white band across the middle -- yellow legs -- projecting head with proportionately heavy beak -- size, proportions, and narrow tail-band seem to exclude Buteogallus -- Slender-billed Kite out of the question

Dusky-throated Hermit ? -- not reported from Peru -- apparently restricted to white-sand forests of upper R’o Negro basin -- single birds seen twice at close range beside small ca–os in area of extensive varzea and restinga -- medium-sized hermit, curved beak, dark buff below, throat dusky gray shading into dark buff below, graduated white-tipped tail pointed but without otherwise elongated central rectrices

McConnell's Flycatcher ? -- not reported in ne Peru -- in mature terra firme forest -- this bird had vocalizations (short wit, wit ... and repeated nasal peu-peu-peu ... at 2/sec) and plumage (no clear edgings or bars) that appear to match macconnelli rather than oleagineus

Golden-winged Tody-Flycatcher Todirostrum ? calopterum -- slightly out of range -- very active in shrubs and isolated trees at edge of cocha -- black cap without loral spot or moustachial mark -- back olive -- white throat and yellow belly -- bold edgings and bars on wing -- there seemed to be double wing bars rather than a single band on greater wing-coverts -- call a scratchy triplet with empahsis on first element (ski'adit), repeated -- this bird does not seem to match either calopterum or pulchellum exactly but seems close to calopterum

Black Manakin ? -- not reported from ne Peru -- manakin-like shape (large round head, small beak, shortish tail), no marks at all, dark charcoal above, dark below, single bird with mixed flock, 10 m up in tall forest, perched on horizontal twigs

Rufous-browed Peppershrike -- status not clear away from foothills of Andes -- heard only from tall trees at edges of rivers and large ca–os (in 12 locations) -- song seemed typical of species elsewhere -- vireo-like phrases with two high emphases -- one phrase repeated at about 3-sec intervals for long bouts before switch to a new phrase

Moriche Oriole -- not clear whether this species occurs south of Amazon -- this bird had orange-yellow rump and nape -- in thickets at edge of river