Southern Long-tailed Woodcreeper

The mournful long-tailed woodcreeper (Deconychura pallida), also known as the southern long-tailed woodcreeper, is a species of bird in subfamily Dendrocolaptinae of the ovenbird family Furnariidae. It is found in Bolivia, Brazil, Colombia, Ecuador, Peru, and Venezuela. == Taxonomy and systematics == The mournful long-tailed woodcreeper was formerly considered to be part of the former long-tailed woodcreeper (Deconychura longicauda) with what are now the northern long-tailed woodcreeper (keeping D. longicauda) and the little long-tailed woodcreeper (D. typica). BirdLife International's Handbook of the Birds of the World (HBW) has treated them separately since the 2010s, and the International Ornithological Committee (IOC) followed suit in July 2023. However, the North American and South American Classification Committees of the American Ornithological Society and the Clements taxonomy treat the long-tailed woodcreeper as one species. The AOS notes that it probably consists of at least two and possibly three species. The IOC and HBW recognize these three subspecies; Clements groups them as "long-tailed woodcreeper (southern)": D. p. connectens Zimmer, JT, 1929 D. p. pallida Zimmer, JT, 1929 D. p. zimmeri Pinto, 1974 == Description == The mournful long-tailed woodcreeper is a medium-sized member of its subfamily, with a slim body, long wings and tail, and…