pardela-de-cauda-curta vs hutton's shearwater

The Short-tailed Shearwater and Hutton's Shearwater can be distinguished primarily by their structure and plumage. The Short-tailed Shearwater has a bulkier build with a shorter tail, while Hutton's Shearwater is more slender with a longer tail. Plumage differences include the darker overall coloration of the Short-tailed Shearwater compared to the lighter Hutton's Shearwater.

1. Structure: Look for the bulkier build and shorter tail of the Short-tailed Shearwater compared to the more slender and longer-tailed Hutton's Shearwater. 2. Plumage: Note the darker overall coloration of the Short-tailed Shearwater versus the lighter and more contrasting plumage of Hutton's Shearwater.

Short-tailed Shearwater is bulkier and generally larger than Hutton's Shearwater.

Short-tailed Shearwater is darker overall, whereas Hutton's Shearwater has a lighter appearance with more contrast between the upperparts and underparts.