VI: CARTELES.

The article presents a historical review of the international cooperation between the Ornithological Council (CO) and CIPAMEX, highlighting the challenges and opportunities. The CO seeks to give a voice to ornithologists in the Western Hemisphere and has representatives from the eight most important ornithological organizations in the area. CIPAMEX joined the CO in 1998 and has participated in scholarship programs, international events, and document translation. Despite the decrease in economic resources, the CO continues its efforts and has opened the opportunity for volunteers to participate in working group decisions. Additionally, several studies on birds in different regions of Mexico are presented, including the prevalence of hemoparasites in wild birds, the diversity of shorebirds, the reproductive phenology of the Charadrius vociferus shorebird, the diet of the Mexican finch, the relationship between mistletoe, its hosts, and seed-dispersing birds, bird species as indicators of habitat quality, heron beak morphometrics, and the avifauna of Tula National Park and its surrounding area. Studies on the composition and abundance of the Picidae family, the habitat and nesting success of the cotuí quail, the rehabilitation of nocturnal raptors, the reproductive success of the brown owl in captivity, the influence of urbanization on morphophysiological aspects of the Eurasian blackbird and the Great Kiskadee, the presence of hemoparasites in reproductive adults of Junco phaeonotus, antibiotic resistance in Gram-negative bacteria associated with birds, and the development of birdwatching tourism in the UMA of the Ejido Rancho El Salado Jolalpan Puebla are also presented. [Extracted from the article]