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Foraging flights of the white-tailed tropicbird (Phaethon lepturus): Radiotracking and doubly-labelled water

Colonial Waterbirds

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Abstract

Radiotracking transmitters were fitted to White-tailed Tropicbirds nesting at Culebra, Puerto Rico. Foragers were located by light aircraft out to 89 km SSW of the nesting colony, over a deep-water foraging area south of Vieques Island, Puerto Rico and west of St Croix, U. S. Virgin Islands. Two birds were followed out to 176 km NNW from the colony, over the Puerto Rico Trench, but these did not subsequently return. Foragers carrying radio transmitters performed similarly to those without, in terms of duration of absence from the colony, and mass of food brought for the chick. However, measuremetns of energy consumption by the doubly labelled water method indicated that birds with transmitters consumed significantly more energy than those without.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Foraging flights of the white-tailed tropicbird (Phaethon lepturus): Radiotracking and doubly-labelled water
Series title:
Colonial Waterbirds
Volume
13
Issue:
2
Year Published:
1990
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
96-102
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Colonial Waterbirds
First page:
96
Last page:
102
Number of Pages:
7