Modifiers matching finch:

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

Simple categories matching migrant:

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