2025. 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). Natural History Sciences. 12, 1 (Jul. 2025). DOI:https://doi.org/10.4081/nhs.2024.748.