Intensive, production-focused forestry can negatively affect forest bird, but recent decades have seen the emergence of alternative approaches, collectively termed multi-purpose forestry (MPF), aiming to integrate wood production with biodiversity conversation and other forest functions. Besides the need of assessing how bird abundance, diversity and assemblage compostion respond to MPF, examining othe dimensions of habitat quality, such as breeding success and food resource availability, can provide insights into the processes driving those responses. Invertebrate are a key food resource for birds but are also affected by forest management and have been declining within forests.