Lind, Henrik. “Red-Flanked Bluetail Tarsiger Cyanurus Singing Like a Willow Tit Poecile Montanus”. Ornis Svecica 20, no. 1 (January 1, 2010): 54–56. Accessed May 8, 2024. https://journals.lub.lu.se/os/article/view/22643.