Birds are numerous, and they have different names. In this article, the names have been selected to run in an alphabetical order. This listing is perfect for easy understanding when classifying the birds and giving them descriptions. Below, the birds listed are all named with the first letter ‘P’.

Pacific Slope Flycatcher - This is a breed with distinctive behaviors. The subspecies of this family differs from the others in terms of behaviors. The difference comes in because of environmental differences. These birds live in distinct environments meaning that their behavior has to favor the environment for perfect survival. They are diurnal. However, some are nocturnal. They simply operate differently.

Pine Siskin is a breed with differences per subspecies. The reasons these birds differ in their day and night operations are purely dependent on the vision, predators and the feeding modes. For the birds with strong eyesight, they mostly operate during the night. The poor vision birds have to work during the day in search of food.

The Painted Redstart takes after its name. It has pronounced redness, and appears like a painted bird. Feeding is a great adaptation feature that varies for the various birds within the subspecies. The beaks of the different birds are developed according to what they feed on. The shape of the beak determines what the birds can outsource as food.

Phainopepla – This is a species of birds that commonly feed on nectar, seeds, fruit, plants, carrion, and other small animals, particularly insects. With the birds having no teeth, they have a highly developed digestive system that is well adapted for the eventual processing of unchewed food.

Pied-billed Grebe - This is a breed of birds that cannot survive without water. Water for them is a habitat as well as a need. Irrespective of the food taken, water is necessary for these birds. However, the breed is great in conservation of water in their bodies. The excretion mode as well is great.

Pileated Woodpecker - This bird acquires water from moisture within the food it consumes. Other adaptations exhibited by this bird include body temperature control. The idea of body temperature control is to minimize moisture loss, and therefore have less demand on water.

The Pinyon Jay bird species always have a migration period. They take advantage and get away from the prevailing environmental differences. The differences are in terms of seasonal temperatures. These birds do migrate to optimize their food availability sources. They also migrate to assist in securing good breeding habitat.

Plumbeous Vireo - Bird migrations here are always varying depending on the subspecies of the bird. These birds always undertake an annual migration. The migrations depend on the weather conditions as well as the distance. It is usually important that these birds have to adapt well before migration. They increase their body fats substantially and keep reserves to reduce their respective size to be ready for the migration.