Denver is along a principal route of the Central Flyway, which birds use to make their annual journey from breeding grounds in the north to wintering grounds in the south. Denver provides a wide range of habitat for more than 300 bird species that migrate through or nest in the city. While exact timing varies year to year, spring migration generally occurs from mid-March to the beginning of June and fall migration occurs from mid-August to the beginning of November.
In addition to contributing greatly to our experience of nature, birds play an essential role in our urban ecosystem. For example, birds:
- Consume billions of insects daily (including mosquitos)
- Pollinate plants
- Disperse countless seeds
Birds also contribute to our economy, as birdwatching has become the second most popular leisure activity in North America, after gardening.