what values do you learn from the Goldfinches in the poem laburnum top?

Goldfinches in the poem are a sign of happiness. The arrival of goldfinches made the laburnum top lively. It spreads the message to the readers that we must always spread happiness in life of other people. All people are directly or indirectly dependent on each other. So everyone should be provided importance. Here the Goldfinch is dependent on Laburnum Tree for her livelihood. It also depicts that change is necessary in life. Hope it helps...