Provisioning behavior can have cascading effects on nest survival, juvenile recruitment, and parental fitness. Provisioning behavior may be influenced by temporal variables, such as nestling age, or habitat variables, such as food availability and landscape disturbance. Black‐backed Woodpeckers (Picoides arcticus) are associated with burned forests, where they nest in stands of fire‐killed trees. Our objectives were to determine if their nestling provisioning behavior is influenced by the characteristics of fires and post‐fire management, and if provisioning behavior differs with sex and varies across the breeding season. We recorded provisioning rates and the size of prey deliveries at 21 nests of Black‐backed Woodpeckers in a burned area of northern California in 2014–2015 and examined the possible effects of habitat, temporal variables, and parental sex on provisioning rates and prey delivery size using mixed‐effects models. Provisioning rates were higher for early season nests than late‐season nests, and provisioning rates increased with nestling age. The size of prey provided to nestlings increased with nestling age, and prey delivery size was also larger for nests near areas where post‐fire logging had occurred. Parental sex had no effect on either provisioning rates or prey delivery size. Our results suggest that, in burned forests in our study area, Black‐backed Woodpeckers provisioning nestlings respond more strongly to temporal variables than habitat variables, and both sexes contribute equally to feeding young. Temporal variation in provisioning rates and prey delivery size likely reflect variation in the energetic demands of nestlings.
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