Figure 4 from: Morales Rozo A, Valencia F, Acosta A, Parra J (2014) Birds of Antioquia: Georeferenced database of specimens from the Colección de Ciencias Naturales del Museo Universitario de la Universidad de Antioquia (MUA). ZooKeys 410: 95-103. https://doi.org/10.3897/zookeys.410.7109

Figure 4 - Distribution of specimens through time, showing two peaks in collection activity during the early 1970s and 2000s. Both time periods correspond to the timing of large-scale projects.