White-eyed Vireo (Vireo griseus)

Adult trematodes belonging to the genus LeucocMoridium Carus are here reported for the first time from North America. These flukes are intestinal parasites of birds and proved to be previously undescribed species.In the present paper a key separating the species of the genus is given, and the following are described and figured as new species:Leucochloridium certhiae n. sp. from Certhia familiaris americana;Leucochloridium mniotiltae n. sp. from Mniotilta varia;Leucochloridium icteri n. sp. from Icterus galbula;Leucochloridium vireonis n. sp. from Vireo griseus griseus;Leucochloridium sorae n. sp. from Porzana Carolina.

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Song Variation within a Population of White-Eyed Vireos (Vireo griseus)

The Auk ◽

10.1093/auk/98.1.80 ◽

1981 ◽

Vol 98 (1) ◽

pp. 80-87

Author(s):

Richard A. Bradley

Keyword(s):

Sequence Comparison ◽

Territorial Male ◽

Individual Male ◽

Song Variation ◽

Vireo Griseus ◽

Intrapopulational Variation ◽

Song Repertoires

Abstract Intrapopulational variation in the songs of territorial male White-eyed Vireos (Vireo griseus griseus) was studied at Gainesville, Florida during 1977 and 1978. The motifs in the song repertoires of 40 color-banded males were analyzed in detail. Individual male White-eyed Vireos used 1-14 different motifs. A quantitative sequence-comparison measure of song dissimilarity was used to compare song repertoires. No relationship was found between the dissimilarity of individuals' song repertoires and the map distances between their territories. Unexpectedly, pairs of neighboring males had more dissimilar song repertoires than non-neighboring pairs of vireos.

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Brooding and provisioning of nestlings by male and female White-eyed Vireos (Vireo griseus)

Avian Biology Research ◽

10.1177/1758155919832138 ◽

2019 ◽

Vol 12 (1) ◽

pp. 28-32

Author(s):

Gary Ritchison ◽

Jeffrey A Hawkins ◽

Brianna C Ritchison

Keyword(s):

Interspecific Variation ◽

Biparental Care ◽

East Central ◽

Male And Female ◽

Adult Behavior ◽

Extra Pair Paternity ◽

Nest Sites ◽

Males And Females ◽

Vireo Griseus ◽

Limit Energy

Most species of songbirds exhibit biparental care, but, for many taxa and species, little is known about the relative contributions of males and females in brooding and provisioning nestlings. Additional studies of the contributions of males and females in brooding and feeding nestlings are needed to better understand the respective roles of males and females as well as the factors that might contribute to interspecific variation in those roles. We examined the roles of adult male and female White-eyed Vireos ( Vireo griseus) in brooding and provisioning nestlings in east-central Kentucky during the 1996 breeding season. Nests were located by monitoring adult behavior and checking likely nest sites. Once eggs hatched, nests were video-recorded to monitor the behavior of adults. Subsequent review of videos revealed that both male and female White-eyed Vireos brooded young and that males provisioned nestlings at higher rates than females. In contrast to males in many other species of songbirds, male White-eyed Vireos assisted in brooding young and provisioned nestlings at higher rates than their mates. One possible explanation for this is that low rates of extra-pair paternity might increase male confidence of their paternity status. Parental care provided by male White-eyed Vireos may also limit energy expenditure by their mates and increase the likelihood of females re-nesting if nests are predated or initiating second nesting attempts if initial attempts are successful.

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