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- Title
Breeding biology of the Little Cormorant Phalacrocorax niger (Pelecaniformes: Phlacrocoracidae) in Bangladesh.
- Authors
Naher, Habibon; Sarker, Noor Jahan; Rahman, Khalilur; Khan, Shawkat Imam
- Abstract
The breeding biology of the Little Cormorant Phalacrocorax niger was studied in a nesting colony at Dhonagoda Village in Chandpur District, Bangladesh between 2003 and 2005. The breeding activities of the Little Cormorant commenced in May and continued till October. The major nesting trees of the colony included Albizzia procera, Mangifera indica, Ficus spp., Streblus asper and Cocos nucifera. Both partners took part in nest building (n=33). The nest building period was 8 to 15 days (mean±SD 10.85±1.98) and the clutch size (n=20) varied from 2 to 6 (3.75±0.8). The length and diameter of the eggs (n=115) ranged between 4.05 and 4.98 cm (4.5±0.18) and 2.5 and 3.03 cm (3±0.07) respectively. The eggs weighed between 14g and 25g (18.4±0.88). The incubation period was from 14 to 21 days (17.3±2.1) and the weight of the hatchling varied from 4 g to 18.2g (10.45±3.6). The brooding period was from 15 to 20 days (17.3±1.26). The young flew away from the nest at the age of 17 to 29 days (20.85±2.8) after hatching when the weight was 350g to 470g (411.93±28.55). The breeding success was 78.76% in relation to eggs hatched and 68.26% in relation to eggs laid.
- Subjects
BANGLADESH; BIRD breeding; SEA birds; PHALACROCORAX; PELECANIFORMES; NEST building; HATCHABILITY of eggs; EGG incubation; REPRODUCTION
- Publication
Journal of Threatened Taxa, 2009, Vol 1, Issue 4, p221
- ISSN
0974-7893
- Publication type
Article
- DOI
10.11609/JoTT.o1790.221-5