Most birds kept by bird lovers belong to the finch family - birds that first peel seeds before they disappear into the goiter. The seeds enter the gizzard via the glandular stomach, where they are crushed using grit and stomach gravel and then transported to the intestines. Through the action of enzymes, plant proteins are broken down into amino acids — the building blocks that make up a protein.
Premium article
This article is available to subscribers
Subscribe and read all articles by Wout van Gils on keeping and caring for colour canaries.
