Modifiers matching finch:

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

Simple categories matching migrant:

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