The (J−H)/(H−K) CC diagrams of the YSOs in BRC NW, BRC 13 and BRC 14. Class I, Class II, Class III and transition sources from Spitzer photometry are shown by the filled triangles, asterisks, filled circles and open squares, respectively. NIR-excess sources from the 2MASS and Matsuyanagi et al. (2006) (in case of BRC 14) are shown by the open triangles and Hα sources from Ogura et al. (2002) are shown by the open circles.