Desarrollo Vocal en Polluelos del Cernicalo (Falco sparverius)

Translated title of the contribution: Vocal development in American Kestrel (Falco sparverius) nestlings

John A. Smallwood, Valerie Dudajek, Sivajini Gilchrist, Mary Anne Smallwood

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We studied the acoustical characteristics of calls made by nestling American Kestrels (Falco sparverius). A total of 563 vocal samples was obtained from 88 chicks (49 males and 39 females) from 20 broods. Thirteen frequency, three numerical, and two temporal characteristics were measured using audio spectrography. Discriminant function analysis failed to distinguish the calls of male and female chicks, but univariate and principal component analyses suggest that vocal ontogeny proceeds more rapidly in males than in females. The acoustical characteristics of call notes changed in a consistent manner as nestlings matured, and by day 16 chicks produced calls similar to those of adults.

Original languageSpanish
Pages (from-to)37-43
Number of pages7
JournalJournal of Raptor Research
Volume37
Issue number1
StatePublished - 1 Mar 2003

Fingerprint

Falco sparverius
chicks
discriminant analysis
ontogeny
spectroscopy
nestlings
sampling

Keywords

  • American Kestrel
  • Development
  • Falco sparverius
  • Vocalization

Cite this

Smallwood, J. A., Dudajek, V., Gilchrist, S., & Smallwood, M. A. (2003). Desarrollo Vocal en Polluelos del Cernicalo (Falco sparverius). Journal of Raptor Research, 37(1), 37-43.
Smallwood, John A. ; Dudajek, Valerie ; Gilchrist, Sivajini ; Smallwood, Mary Anne. / Desarrollo Vocal en Polluelos del Cernicalo (Falco sparverius). In: Journal of Raptor Research. 2003 ; Vol. 37, No. 1. pp. 37-43.
@article{3058a230129f453a96ffd0efd560c714,
title = "Desarrollo Vocal en Polluelos del Cernicalo (Falco sparverius)",
abstract = "We studied the acoustical characteristics of calls made by nestling American Kestrels (Falco sparverius). A total of 563 vocal samples was obtained from 88 chicks (49 males and 39 females) from 20 broods. Thirteen frequency, three numerical, and two temporal characteristics were measured using audio spectrography. Discriminant function analysis failed to distinguish the calls of male and female chicks, but univariate and principal component analyses suggest that vocal ontogeny proceeds more rapidly in males than in females. The acoustical characteristics of call notes changed in a consistent manner as nestlings matured, and by day 16 chicks produced calls similar to those of adults.",
keywords = "American Kestrel, Development, Falco sparverius, Vocalization",
author = "Smallwood, {John A.} and Valerie Dudajek and Sivajini Gilchrist and Smallwood, {Mary Anne}",
year = "2003",
month = "3",
day = "1",
language = "Spanish",
volume = "37",
pages = "37--43",
journal = "Journal of Raptor Research",
issn = "0892-1016",
publisher = "Raptor Research Foundation, Inc.",
number = "1",

}

Smallwood, JA, Dudajek, V, Gilchrist, S & Smallwood, MA 2003, 'Desarrollo Vocal en Polluelos del Cernicalo (Falco sparverius)', Journal of Raptor Research, vol. 37, no. 1, pp. 37-43.

Desarrollo Vocal en Polluelos del Cernicalo (Falco sparverius). / Smallwood, John A.; Dudajek, Valerie; Gilchrist, Sivajini; Smallwood, Mary Anne.

In: Journal of Raptor Research, Vol. 37, No. 1, 01.03.2003, p. 37-43.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Desarrollo Vocal en Polluelos del Cernicalo (Falco sparverius)

AU - Smallwood, John A.

AU - Dudajek, Valerie

AU - Gilchrist, Sivajini

AU - Smallwood, Mary Anne

PY - 2003/3/1

Y1 - 2003/3/1

N2 - We studied the acoustical characteristics of calls made by nestling American Kestrels (Falco sparverius). A total of 563 vocal samples was obtained from 88 chicks (49 males and 39 females) from 20 broods. Thirteen frequency, three numerical, and two temporal characteristics were measured using audio spectrography. Discriminant function analysis failed to distinguish the calls of male and female chicks, but univariate and principal component analyses suggest that vocal ontogeny proceeds more rapidly in males than in females. The acoustical characteristics of call notes changed in a consistent manner as nestlings matured, and by day 16 chicks produced calls similar to those of adults.

AB - We studied the acoustical characteristics of calls made by nestling American Kestrels (Falco sparverius). A total of 563 vocal samples was obtained from 88 chicks (49 males and 39 females) from 20 broods. Thirteen frequency, three numerical, and two temporal characteristics were measured using audio spectrography. Discriminant function analysis failed to distinguish the calls of male and female chicks, but univariate and principal component analyses suggest that vocal ontogeny proceeds more rapidly in males than in females. The acoustical characteristics of call notes changed in a consistent manner as nestlings matured, and by day 16 chicks produced calls similar to those of adults.

KW - American Kestrel

KW - Development

KW - Falco sparverius

KW - Vocalization

UR - http://www.scopus.com/inward/record.url?scp=0037945577&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0037945577

VL - 37

SP - 37

EP - 43

JO - Journal of Raptor Research

JF - Journal of Raptor Research

SN - 0892-1016

IS - 1

ER -

Smallwood JA, Dudajek V, Gilchrist S, Smallwood MA. Desarrollo Vocal en Polluelos del Cernicalo (Falco sparverius). Journal of Raptor Research. 2003 Mar 1;37(1):37-43.