Modifiers matching finch:

• small,
• smaller,
• migrant,
• northern,
• australian,
• beaked,
• european,
• migratory,
• rare,

Simple categories matching migrant:

• bird,
• group,
• insectivore,
• labourer,
• sandpiper,
• songbird,
• worker,
• visa,
• organization,
• passerine,
• warbler,
• waterbird,
• language,
• fish,
• shorebird,
• population,
• finch,
• thrush,
• sparrow,