Observations on the Breeding Biology of the Luzon Flameback Chrysocolaptes Haematribon (Wagler 1827) (Piciformes: Picidae) With Notes on Active Nest Defense Against Dollarbird Eurystomus Orientalis (Linnaeus 1766) (Coraciiformes: Coraciidae). Nat Hist Sci 2025, 12 (1). https://doi.org/10.4081/nhs.2024.748.