areSongbirds

Given a predicate that represents a relationship or action between entities, generate a one-sentence description explaining its meaning.  
# Instructions
Focus on describing the relationship, not the entities themselves. 
# Response Format
Begin the description with \' Indicates...\'

Predicate: areSongbirds

Indicates that the related entities belong to the group of birds classified as songbirds, typically characterized by vocalizations used for communication or mating.