Herald Petrel vs Murphy's Petrel

In short

Herald Petrel and Murphy's Petrel are both medium-sized seabirds with similar plumage, but they can be distinguished by their wing and tail structure. Herald Petrel typically shows a more contrasting plumage with a paler underwing, while Murphy's Petrel has a more uniform dark appearance. Observing these birds in flight can help, as Herald Petrel often appears more slender with longer wings.

Identification tips

1. Look for the contrasting plumage of the Herald Petrel, especially the paler underwing. 2. Note the overall darker and more uniform appearance of Murphy's Petrel. 3. Observe the wing structure; Herald Petrel often appears more slender with longer wings. 4. Consider the location and typical range if known, although both can overlap in some areas.

Size

Both species are similar in size, but Herald Petrel may appear slightly more slender.

Plumage

Herald Petrel generally has a more contrasting plumage with a paler underwing and a darker cap, while Murphy's Petrel is more uniformly dark with less contrast between the upper and underparts.

Behaviour

Both species exhibit similar flight patterns typical of petrels, with dynamic soaring and gliding over the ocean.

Habitat

Both species are pelagic and are typically found far from land, often in similar oceanic regions.

Voice

Vocalizations are rarely heard at sea, and there is limited information on distinguishing calls between these two species.