Crimson-browed finch finch was formerly placed in the genus "Pinicola" but was moved to the rosefinch genus "Carpodacus" based on the results from the phylogenetic analyses of mitochondrial and nuclear DNA sequences. Crimson-browed finch The crimson-browed finch ("Carpodacus subhimachalus") is a true finch species (family Fringillidae). It is found in Bhutan, China, India, Myanmar, and Nepal. Its natural habitats are temperate forests and temperate shrubland. This is a large finch with a large short bill. The male has a crimson red head and throat. The female has a yellow head and throat. The species was described by the British naturalist Brian Houghton
Metacresol purple Metacresol purple Metacresol purple or m"-cresol purple, also called m"-cresolsulfonphthalein is a triarylmethane dye and a pH indicator that is used in medicine to detect end-tidal carbon dioxide to ensure successful tracheal intubation in an emergency as the indicator inside a colorimetric carbon dioxide detector. It can be used to measure the pH in subzero temperatures of saline or hypersaline media. In colometric capnography the indicator is incorporated in a matrix that provides a pH just above the indicator's colour change, it undergoes the colour change from purple to yellow with CO; (a yellow colour often described as gold) when