Common Pipistrelle vs Hallowell’s Tree Frog

Pipistrellus pipistrellus compared with Hyla hallowellii

Key Differences

• Common Pipistrelle is Vulnerable while Hallowell’s Tree Frog is Least Concern.

Taxonomic Classification

Rank	Common Pipistrelle	Hallowell’s Tree Frog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Chiroptera (Bats)	Anura (Frogs & Toads)
Family	Vespertilionidae	Hylidae
Genus	Pipistrellus	Hyla
Species	Pipistrellus pipistrellus	Hyla hallowellii

Evolutionary Relationship

Common Pipistrelle and Hallowell’s Tree Frog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Common Pipistrelle

VU — Vulnerable

Hallowell’s Tree Frog

LC — Least Concern

Physical Characteristics

Attribute	Common Pipistrelle	Hallowell’s Tree Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Pipistrelle

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Europe (7 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Hallowell’s Tree Frog

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Common Pipistrelle

<em>Pipistrellus pipistrellus</em>, the common pipistrelle, is a small bat in the family Vespertilionidae and one of the most abundant and widespread bat species in Europe. It is typically one of the first bats to emerge at dusk, flying with rapid, jerky wingbeats as it pursues small flying insects over gardens, woodland edges, water bodies, and urban areas. The species roosts in crevices in buildings, bat boxes, and tree holes, often forming large maternity colonies in summer. <em>Pipistrellus pipistrellus</em> echolocates at a characteristic frequency of around 45 kHz, which allows it to be identified using bat detectors. It is distributed across Europe, with confirmed records from Belgium, Denmark, Luxembourg, Norway, and Portugal, among many other countries. The species is assessed as Vulnerable on the IUCN Red List, reflecting population declines driven by loss of foraging habitat, reduction in insect prey biomass, disturbance of roost sites, and pesticide use. Biological traits such as average lifespan, body size, weight, and detailed dietary composition across its range remain poorly documented in the scientific literature, though the species is known to consume large numbers of small moths, midges, and other aerial insects each night.