Ex-situ conservation actions such as reintroduction programs can be relevant for the recovery of threatened animals (Seddon et al. 2007). However, to be successful Ex-situ actions should be integrated with in-situ conservation measures (Schwartz et al. 2017) and be planned with concrete ecological goals using strategic and scientific approaches (Armstrong & Seddon 2008). It is essential that reintroduction programs for endangered species take into consideration the causes that have led to the decline of the populations; the root causes of decline must be addressed and mitigated before a species can be reintroduced (Armstrong & Seddon 2008).The Andean Condor (Vultur gryphus) is one such species of concern. This species, considered Vulnerable worldwide (BirdLife International 2023), is of particular importance in Colombia, where it is classified as Critically Endangered with a population fewer than 190 individuals (Renjifo et al. 2016). Over the last 33 years, reintroduction has been one of the main strategies implemented by the government and private agencies of Colombia for the conservation of the Andean Condor (Lieberman et al. 1993, Rodríguez et al. 2006. In total, seventyone captive-born individuals (38 males and 33 females) have been released by the government and San Diego Zoo within the historical range of the species (Lieberman et al. 1993, Rodríguez et al. 2006. Andean Condor reintroduction efforts have allowed condors to inhabit sites where the population had been extirpated. For instance, in the Parque Nacional Natural (PNN) Los Nevados, the last record for wild condors was in 1977 (Tovar 1985). From 1997 to 1999, 14 juvenile condors were released in this protected area, of which six individuals were recently observed (Fig. 1) (Zuluaga & Ospina-Herrera 2020, Restrepo-Cardona 2021).However, there are numerous gaps in the reintroduction programs to date that need to be addressed going forward. The first is a lack of adequate monitoring. Because of a lack of monitoring following Andean condor releases, little is known about the outcomes of these reintroductions. In fact, a recent study indicates that at least 7% of the condors released in Colombia were poisoned, shot, or killed due to electrocution from power lines (Restrepo-Cardona et al. 2022). In addition, evidence of reproduction among reintroduced Andean Condors has only been reported for a single pair of the PNN Los Nevados, which incubated its last egg ORNITOLOGÍA COLOMBIANA © 2023 Los Autores Revista Ornitología Colombiana -Asociación Colombiana de Ornitología ACO Este es un articulo de acceso abierto bajo los términos de la licencia Creative Commons Atribución-NoComercial 4.0 Internacional