Fig. 2From: Differential post-fledging habitat use of Nearctic-Neotropical migratory birds within an urbanized landscapeMean time-integrated Brownian bridge-derived probability density functions (PDF) for fledgling gray catbirds and wood thrushes during pre-independence (a and b, respectively), and post-independence (c and d, respectively) periods after fledging during the breeding seasons from 2012 to 2014 in and around Newark, Delaware, USA. All panels show same area in relation to scale bar in panel dBack to article page