'Birder' definitions:
Definition of 'birder'
(from WordNet)
noun
A person who identifies and studies birds in their natural habitats [syn: bird watcher, birder]
Definition of 'Birder'
From: GCIDE
- Birder \Bird"er\ (-[~e]r), n.
- 1. A birdcatcher. [1913 Webster]
- 2. a birdwatcher. [PJC]