Characteristics Of Nest And Success Browning Big Kuntul (Egretta Alba) And Cangak Abu (Ardea Cinerea) In The Breeding Site Area Of ​​Tanjung Rejo Village

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Introduction

The Tanjung Rejo Village in North Sumatra, Indonesia, is a vital breeding site for various species of water birds. Among these species, the Big Kuntul (Egretta Alba) and Cangak Abu (Ardea Cinerea) are two of the most prominent residents. These birds have been the subject of various studies, but the characteristics of their nests and breeding success have not been extensively explored. This study aims to fill this knowledge gap by investigating the characteristics of the nests and breeding success of Big Kuntul and Cangak Abu in the Tanjung Rejo Village.

Methodology

The research was conducted in the Pond area of ​​Tanjung Rejo Village, North Sumatra, between October 2014 and January 2015. The study focused on the characteristics of the nests and breeding success of Big Kuntul and Cangak Abu. The researchers observed and recorded the following parameters:

  • Nest characteristics: height, width, and material used
  • Egg characteristics: size and time of hatching
  • Breeding success: hatching rate and success rate of raising offspring

Results

Cangak Ash Nest: High, Broad, and Various Choices of Trees

Cangak ash shows preferences for three types of trees to build nests, namely Rhizophora mucronata, Avicennia officinalis, and Sonneratia Alba, with a height of nests reaching 6.5 to 9 meters. The dominant nest material has a height of 30.01 to 35.00 cm (13%) and a diameter of 30.01 to 35.00 cm (13%). This suggests that Cangak ash builds high and broad nests, with a preference for specific tree species.

Large Kuntul Nest: Lower and Denser

Big Kuntul chose two types of trees to nest, namely Rhizophora Mucronata and Cerbera Odollam, with a height of nests ranging from 3.8 to 5.4 meters. Dominant nest material has a height of 20.01 to 25.00 cm (23.38%) and a diameter of 0.21 to 0.4 cm (41.12%). This difference shows that a large headman tends to build a lower nest and is denser than ash.

Eggs: Size and Time of Hatching

Both species of birds have an egg ratio ranging from 1,2: 1 to 1.4: 1 cm, categorized as type VI. Cangak ash takes 2 to 4 days to lay eggs, while large folds take 2 to 6 days. The optimal incubation period reaches 26 to 29 days for ash cangak, and 23 to 25 days for large wrapping.

Success of Breeding: Large Kuntul is Superior

Research shows that the success rate of hatching of large kuntul reaches 100%, higher than ash which only reaches 82.35%. This shows that a large kuntul is more successful in hatching eggs and raising their children in the Tanjung Rejo Pond area.

Analysis and Implications

Differences in nest characteristics and breeding success between these two species may be influenced by several factors, such as the availability of resources, competition between species, and environmental conditions around the pond area.

Availability of Resources

Cangak ash has a larger body and requires a higher nest to get access to wider food sources.

Competition between Species

Large Kuntul and Cangak ash may compete to get the ideal resources and nesting places.

Environmental Conditions

The height of the nest and nest material used can be influenced by environmental conditions such as wind, rain, and temperature.

Conclusion

This study provides important information about the characteristics of nests and the success of the Big Kuntul and Cangak ash in the Tanjung Rejo Pond area. These findings can be used to manage and protect the habitat of the two species of birds in the future, as well as assist in the conservation of water birds in Indonesia.

Recommendations

Based on the findings of this study, the following recommendations are made:

  • Conservation efforts: The Tanjung Rejo Pond area should be protected and conserved to ensure the survival of Big Kuntul and Cangak ash.
  • Habitat management: The habitat of Big Kuntul and Cangak ash should be managed to ensure the availability of resources and nesting places.
  • Research and monitoring: Further research and monitoring should be conducted to understand the dynamics of Big Kuntul and Cangak ash populations in the Tanjung Rejo Pond area.

By implementing these recommendations, we can ensure the long-term survival of Big Kuntul and Cangak ash in the Tanjung Rejo Pond area.

Introduction

The Big Kuntul (Egretta Alba) and Cangak Abu (Ardea Cinerea) are two species of water birds that are commonly found in the Tanjung Rejo Pond area in North Sumatra, Indonesia. These birds have been the subject of various studies, but many people still have questions about them. In this article, we will answer some of the most frequently asked questions about Big Kuntul and Cangak Abu.

Q: What is the difference between Big Kuntul and Cangak Abu?

A: Big Kuntul and Cangak Abu are two different species of water birds. Big Kuntul is a white bird with a long neck and legs, while Cangak Abu is a grayish-white bird with a shorter neck and legs.

Q: What do Big Kuntul and Cangak Abu eat?

A: Both Big Kuntul and Cangak Abu are carnivores and feed on small fish, crustaceans, and insects. They also eat frogs and other small animals.

Q: Where do Big Kuntul and Cangak Abu build their nests?

A: Big Kuntul and Cangak Abu build their nests in trees or on the ground near water. They prefer to nest in areas with dense vegetation and access to water.

Q: How long do Big Kuntul and Cangak Abu eggs take to hatch?

A: The incubation period for Big Kuntul eggs is around 26-29 days, while Cangak Abu eggs take around 23-25 days to hatch.

Q: What is the success rate of Big Kuntul and Cangak Abu breeding?

A: The success rate of Big Kuntul breeding is around 100%, while Cangak Abu has a success rate of around 82.35%.

Q: Why do Big Kuntul and Cangak Abu build high nests?

A: Big Kuntul and Cangak Abu build high nests to get access to wider food sources and to avoid predators.

Q: Can Big Kuntul and Cangak Abu be found in other parts of Indonesia?

A: Yes, Big Kuntul and Cangak Abu can be found in other parts of Indonesia, including Java, Bali, and Lombok.

Q: What is the conservation status of Big Kuntul and Cangak Abu?

A: Both Big Kuntul and Cangak Abu are listed as species of least concern by the International Union for Conservation of Nature (IUCN). However, their populations are declining due to habitat loss and degradation.

Q: How can I help conserve Big Kuntul and Cangak Abu?

A: You can help conserve Big Kuntul and Cangak Abu by supporting conservation efforts, reducing your carbon footprint, and spreading awareness about the importance of protecting their habitats.

Conclusion

Big Kuntul and Cangak Abu are two fascinating species of water birds that are found in the Tanjung Rejo Pond area in North Sumatra, Indonesia. By understanding their behavior, habitat, and conservation status, we can take steps to protect them and their habitats. We hope that this article has answered some of the most frequently asked questions about Big Kuntul and Cangak Abu.