Published in HBW Volume 16 on page 352.
Original HBW caption:
The song of the Goldenbellied Grosbeak is a rich carolling, similar to that of the Highland Hepatic-tanager (Piranga lutea). The number of syllables in the song repertoires of the different cardinalid genera varies substantially. Cardinalis species may use only ten or so syllables, but Pheucticus species generally have larger repertoires: 15–23 for Rose-breasted Grosbeaks (Pheucticus ludovicianus) and up to 37 for male Black-headed Grosbeaks (P. melanocephalus). Female Black-headed Grosbeaks have smaller repertoires, on average 12–13 syllables.
Citationjonhornbuckle, IBC1008598. Accessible at hbw.com/ibc/1008598.
jonhornbuckle, IBC1008598. Photo of Golden Grosbeak Pheucticus chrysogaster at Ecuador, Ecuador. Accessible at hbw.com/ibc/1008598.
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