Wild Parrot Diets & Feeding Ecology: What Science Teaches Us About Feeding Our Birds

Parrots have evolved diverse feeding strategies shaped by their environments, seasonal food availability, and individual species’ biology. Research on wild parrots reveals that their natural diets can include seeds, fruits, flowers, nectar, foliage, bark, and even invertebrates, with considerable variation among species and habitats. These peer-reviewed publications provide bird owners with an important scientific foundation for understanding why species-appropriate dietary diversity and opportunities to engage in natural foraging behaviors deserve attention in captivity. Rather than assuming that all parrots have identical nutritional needs, studying their feeding ecology encourages us to offer thoughtfully selected whole foods with different nutritional characteristics, textures, and opportunities for exploration. Importantly, observations of wild diets are a starting point, not a complete feeding prescription. Together, these studies help bridge the gap between understanding how parrots obtain food in nature and developing informed feeding practices that support their nutritional and behavioral needs.

1. Gilardi & Toft (2012): Nutritional selection by wild parrots

Gilardi, J. D., & Toft, C. A. (2012). Parrots eat nutritious foods despite toxins. PLOS ONE, 7(6), e38293.

What this means for the animals we feed: Researchers observed 17 wild parrot species eating seeds, fruits, flowers, leaves, bark, and insect larvae. The birds selected nutrient-rich plant foods, with seeds supplying substantial protein and fat, supporting the inclusion of diverse, appropriate whole foods, including seeds, in the diets we offer.

2. Lee et al. (2014): Dietary diversity across 16 parrot species

Lee, A. T. K., Brightsmith, D. J., Vargas, M. P., Leon, K. Q., Mejia, A. J., & Marsden, S. J. (2014). Diet and geophagy across a western Amazonian parrot assemblage. Biotropica, 46(3), 322–330.

What this means for the animals we feed: Across 1,400 feeding records, researchers documented wild parrots consuming seeds, flowers, fruit pulp, and smaller amounts of bark, insects, and lichen. Different parrot species used different food resources, reinforcing the value of offering a varied selection of whole foods suited to each species.

3. Renton (2001): Seasonal food selection by lilac-crowned parrots

Renton, K. (2001). Lilac-crowned parrot diet and food resource availability: Resource tracking by a parrot seed predator. The Condor, 103(1), 62–69.

What this means for the animals we feed: Wild lilac-crowned parrots changed their food choices as different seeds became available throughout the year. Rotating suitable whole-food ingredients can provide dietary variety and opportunities to explore foods with different characteristics.

4. Matuzak et al. (2008): Feeding ecology in a changing landscape

Matuzak, G. D., Bezy, M. B., & Brightsmith, D. J. (2008). Foraging ecology of parrots in a modified landscape: Seasonal trends and introduced species. The Wilson Journal of Ornithology, 120(2), 353–365.

What this means for the animals we feed: Six parrot species in Costa Rica consumed varied diets that changed seasonally, with larger parrots eating more seeds and smaller parakeets eating more fruit pulp. These differences support tailoring whole-food choices to the feeding ecology of the species rather than using an identical assortment for every bird.

5. Ragusa-Netto & Fecchio (2006): Food resources in a diverse parrot community

Ragusa-Netto, J., & Fecchio, A. (2006). Plant food resources and the diet of a parrot community in a gallery forest of the southern Pantanal (Brazil). Brazilian Journal of Biology, 66(4), 1021–1032.

What this means for the animals we feed: Parrots in this Brazilian forest consumed fruit pulp, seeds, flowers, and nectar, with different species using these foods in different proportions. Providing suitable whole foods from several plant-food groups can offer a range of natural feeding experiences and reflect the diversity of foods used by wild parrots.

6. Ragusa-Netto (2007): Green-cheeked parakeets adapt their diets to seasonal food availability

Ragusa-Netto, J. (2007). Feeding ecology of the green-cheeked parakeet (Pyrrhura molinae) in dry forests in western Brazil. Brazilian Journal of Biology, 67(2), 243–249.

What this means for the animals we feed: Wild green-cheeked conures ate flowers, seeds, fruit pulp, fleshy seed coverings, figs, and nectar, adjusting their choices to the foods available in different habitats. Offering appropriate fruits, seeds, and other plant foods provides variety consistent with their flexible natural feeding behavior.

7. Santos & Ragusa-Netto (2014): Whole plant foods consumed by blue-and-yellow macaws

Santos, A. A., & Ragusa-Netto, J. (2014). Plant food resources exploited by blue-and-yellow macaws (Ara ararauna, Linnaeus 1758) at an urban area in Central Brazil. Brazilian Journal of Biology, 74(2), 429–437.

What this means for the animals we feed: Wild blue-and-yellow macaws regularly consumed palm fruits and also ate seeds from other tree species as those foods became available. This supports including suitable fruits and seeds in a varied whole-food feeding program for macaws.

8. Ragusa-Netto (2024): Dietary variety in red-and-green macaws

Ragusa-Netto, J. (2024). Feeding ecology of the red-and-green macaw (Ara chloropterus; Gray 1859) in a habitat mosaic from Cerrado. Brazilian Journal of Biology, 84, e280711.

What this means for the animals we feed: Red-and-green macaws were observed eating foods from 25 plant species, including large seeds, palm fruits, and mango pulp, with their choices changing according to availability. A varied assortment of suitable whole fruits and seeds reflects the breadth of plant foods these macaws use in the wild.

9. Benavídez et al. (2021): Seasonal dietary flexibility in green-cheeked parakeets

Benavídez, A., Tallei, E., Echevarría, A. L., & Rivera, L. (2021). Feeding ecology of the green-cheeked parakeet, Pyrrhura molinae (Psittaciformes, Psittacidae), in a subtropical forest of Argentina. Neotropical Biology and Conservation, 16(1), 205–219.

What this means for the animals we feed: Green-cheeked conures consumed fruits, seeds, flowers, nectar, and leaves from a range of plant species, changing their food choices across seasons. Offering a rotation of suitable whole plant foods can provide different flavors, textures, and opportunities for food exploration.

10. Ragusa-Netto (2004): Flowers and fruits in the diet of yellow-chevroned parakeets

Ragusa-Netto, J. (2004). Flowers, fruits, and the abundance of the yellow-chevroned parakeet (Brotogeris chiriri) at a gallery forest in the South Pantanal (Brazil). Brazilian Journal of Biology, 64(4), 867–877.

What this means for the animals we feed: This study examined how wild yellow-chevroned parakeets use flowers and fruits in a forest where food availability changes throughout the year. It supports recognizing flowers and fruits as natural food resources and considering suitable edible flowers alongside other whole plant foods.

11. Rüppell’s parrots: Seasonal use of seeds and other natural foods

The feeding ecology of Rüppell’s parrot, Poicephalus rueppellii, in the Waterberg, Namibia. (2002). Ostrich, 73(3–4).

What this means for the animals we feed: Wild Rüppell’s parrots were observed feeding on seeds, fruits, flowers, nectar, leaves, bark, and small invertebrates, changing their choices as resources became available. Their feeding ecology supports offering varied, species-appropriate whole foods rather than assuming that a single type of food represents their natural diet.

12. Voltura et al. (2024): The breadth of natural parrot food choices

Voltura, E. V., Brightsmith, D. J., Cornejo, J., Tizard, I., Bailey, C. A., & Heatley, J. J. (2024). Parrot dietary habits and consumption of alternate foodstuffs. Journal of Avian Medicine and Surgery, 37(4), 297–313. What this means for the animals we feed: This research review documents wild parrots consuming a wider range of foods than fruits and seeds alone, including foliage, wood, roots, sap, and invertebrates. It supports investigating the ecological feeding habits of individual species when selecting suitable whole foods and developing varied feeding and foraging opportunities.