Campo flicker
The campo flicker ("Colaptes campestris") is a species of bird in the woodpecker family. It is found in a wide range of open and semi-open habitats in eastern Brazil, Bolivia, Paraguay, Uruguay and northeastern Argentina, with isolated populations in Amapá and southern Suriname. Though it frequently can be seen in trees or bushes, it is among the very few woodpeckers that spends a significant portion of its life on the ground. It breeds in holes in trees, termite mounds or earth banks. It is generally common and therefore considered to be of least concern by IUCN. The  southern population has a white throat (instead of a black throat) and is sometimes considered a separate species, the pampas flicker ("Colaptes campestroides"). Focusing on the breeding aspect of campo flickers, they are "predominantly monogamous in both cooperative group and socially monogamous pairs, but in several cooperative groups, auxiliary females contributed eggs to the next” (Dias et al. 2013). Overall, the studies showed a complex social system in the species with high reproductive conflicts both within and among groups, both due to the new potential breeder or through the effect of group size. References. 3. Dias, Raphael Igor; Webster, Michael  S.; Goedert, Débora; Macedo, Regina H. (2013-11). "Cooperative Breeding in the Campo Flicker I". "The Condor". 115 (4): 847–854. doi:10.1525/cond.2013.120142. ISSN 0010-5422. Length: 11.02-12.20 in. (28–31 cm) / Weight: 0.31 lb-0.42 lb (145-192 g)