Article Abstract

Volume 32, No. (6), 2022 (December)
ASSESSMENT ON THE PARENTAL CARE STRATEGY OF THE YELLOW-VENTED BULBUL PYCNONOTUS GOIAVIER IN PERAK, MALAYSIA
M. N, Dzulhelmi, S. Suriyanti, M. N. Nursyereen and M. Sugumaran

M. N, Dzulhelmi1*, S. Suriyanti2, M. N. Nursyereen1 and M. Sugumaran1

1 Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia.

Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia.

Corresponding Author: dzul_3my@yahoo.com
Page Number(s): 1784-1990
Published Online First: June 11, 2022
Publication Date: November 20, 2022
ABSTRACT

The parental care strategy and diet requirements of the yellow-vented bulbul Pycnonotus goiavier chicks were studied. The assessment was conducted based on the (1) number of feeding bouts (bouts/hour), (2) average time intervals between each feeding (minutes/bouts) (3) feeding strategies (perch-go-in or direct-go-in) and (4) types of food items carried to the nest to feed the chicks. A total of 6000 minutes of direct observation from a close distance was performed for 10 days from 28th May 2016 until 6th June 2016 between 0700-1900 hours. Out of 816 independent feeding bouts, the parents preferred the perch-go-in (80.03%) as compared to the direct-go-in (19.97%) feeding strategy to feed the chicks in their nest. The average time spent for feeding was 7.50 ± 3.84 minutes / bout (7.50 ± 1.23 bouts/h), with the least number of bouts during the morning feeding time at 5.68 ± 3.09 bouts/h. The most frequent food items comprised of invertebrates such as dragonflies (16.15%) and grasshoppers (11.35%) and fruits including Murraya koenigii (14.02%). The success of raising both the chicks depended on the nest placement, feeding strategy, food availability, predation risk and commitment of both parents.

Keywords: life history, feeding bout, food types, chicks, activity pattern

Indexing

Web of Science (SCIE)

SCOPUS (Q3)

Status

Journal Metrics

Journal Impact Factor: 0.5 | (JCR Year: 2025) | Cite Score: 1.3

HEC Category: W

Current

ISSN Details

Print ISSN: 1018-7081

Electronic ISSN: 2309-8694

Verified
Search the Journal

Use the fields below to search for articles by Title, Author, or Keywords.