Pinkjärvi has a rich and diverse birdlife.

Bird monitoring in Pinkjärvi has documented changes in species composition and population sizes due to restoration work.

Populations of the Eurasian wren (Troglodytes troglodytes), which thrives in dense undergrowth, have multiplied. The green sandpiper (Tringa ochropus), which prefers small forest ponds and wetlands, has also become more common. The Eurasian three-toed woodpecker (Picoides tridactylus), previously a rare nester, now breeds regularly in the area with 2 to 4 pairs. Standing dead spruce stands provide a plentiful food source for this species. The nationally vulnerable lesser spotted woodpecker (Dendrocopos minor) is also believed to have become slightly more abundant. In addition, the proportion of cavity-nesting birds in the avifauna is gradually increasing.