FEATURE
Figure 5 left: Successfully fledged Blue-throated Macaw chicks in nest box PBA18 (SA1: St Augustine Alligator Farm). The largest chick fledged on the 9th of march, followed by the other two chicks on the 18th of March. Picture taken by Cesar Flores.
Figure 7 inset left: Luis Miguel Barbosa (Reserve Coordinator Assistant) installing new nest boxes in the Laney Rickman Reserve for the 2018-2019 breeding season. A total of 10 new nest boxes were placed, 8 refurbished and 60 made ready for the Macaws to occupy. Picture taken by Marton Hardy.
information watch: https://www.facebook. com/AFABirds/videos/460776861070056/). Also, Armonía created a nest box that stopped competition for breeding cavities between the common and abundant Blue- and-yellow Macaw (Ara ararauna) and the endemic Blue-throated Macaw (fig.9). In 2013 we decreased the entrance hole to 10 by 10 cm, preventing Blue-and-yellow Macaws from using them. The 3 Blue-and- Yellow Macaws that did us the nest boxes this year, literary made their own entrance through destroying the walls.
Results 2018-2019 breeding season
A total of 60 nest boxes were prepared (fig.5) for the 2018-2019 breeding season: 43 in Laney Rickman Reserve; 12 in La Cantina ranch; and 5 in Las Trancas ranch. We decided not to prepare nest boxes in the Santa Rosa ranch (low costs benefit) monitored in previous years, due to low success rates in the past and logistical difficulties faced during the rainy season (extreme flooding). Preparation of nest boxes included the placement of 10 new boxes, refurbishing 8 boxes, removing wasp and bee nests and putting timber scrapings in all 60 boxes used for breeding bed. A total of 20 nest boxes (33% occupancy rate) were used by 6 different birds species (table 1 & annex 1): Blue-throated Macaws (9); Blue-and-Yellow Macaw (3); Chestnut- fronted Macaw (2); White-eyed Parakeet (1); Black-bellied Whistling Duck (6); and an unidentified Woodpecker (1).
Table 1 (above). Summary of nest box usage by different species in the reproductive period of 2018-2019. A total of 20 nest boxes were used divided over 2 locations (16 in Laney Rickman Reserve & 4 in La Cantina). A total of 2 nest boxes have been used by 2 different species (more detailed information in annex 1)
BIRD SCENE 21
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