Chaplyhina, A.B., Yuzyk, D.I., Savynska, N.O. and Hramma, V.M. 2022. Invertebrates in the diet of collared flycatcher (Ficedula albicollis) nestlings in transformed forest ecosystems of north-eastern Ukraine: Invertebrates in the diet of collared flycatcher. Baltic Forestry. 28, 1 (Jun. 2022). DOI:https://doi.org/10.46490/BF439.