Blue-fronted redstart (Phoenicurus frontalis - female) - Sikkim Bird

Scientific classification

Kingdom:       Animalia

Phylum:          Chordata

Class:             Aves

Order:            Passeriformes

Family:           Muscicapidae

Genus:            Phoenicurus

Species:           P. frontalis

Binomial name: Phoenicurus frontalis Vigors, 1832

Other Names:  The female is brownish-grey, with paler under parts. Its range includes the northern regions of the Indian Subcontinent and parts of Southeast Asia. (Wikipedia)

Yellow-bellied fantail (Chelidorhynx hypoxantha) - Sikkim Bird

Scientific classification

Kingdom:       Animalia

Phylum:          Chordata

Class:              Aves

Order:            Passeriformes

Family:           Stenostiridae

Genus:            Chelidorhynx Hodgson, 1844

Species:           C. hypoxantha

Binomial name: Chelidorhynx hypoxantha Blyth, 1843

Other Names:  yellow-bellied fairy-fantail

Special feature:  It is yellow below and has a black eye-stripe, white wing-bar and broad black tail tipped white.

It used to be placed in the family of the fantails (Rhipiduridae), but DNA analysis has shown it to be a close relative of the fairy flycatcher and it has therefore been transferred to the Stenostiridae (IOC World Bird List), in the re-validated monotypic genus Chelidorhynx. (Wikipedia)