“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)” (2025) Natural History Sciences, 12(1). doi:10.4081/nhs.2024.748.