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  • TITLE
  • CERTIFICATE
  • DECLARATION
  • ACKNOWLEDGEMENT
  • CONTENTS
  • LIST OF TABLES
  • LIST OF FIGURES
  • LIST OF PLATES
  • I. INTRODUCTION
  • Plate I
  • Picture 1 A view of the typical habitat of T.affinis at the Calicut University Campus.
  • Picture 2 A view of the typical habitat of T.striatus at the Calicut University Campus.
  • Previous work on genus Turdoides
  • II. STUDY AREA
  • Climate
  • 1 Table 2.1 Total rainfall (mm)
  • 1 2.1 Total rainfall during the years 1995-1998.
  • 2 Table 2.2 Monthly totals of rainfall recorded at the Kozhikode station of the meteorological department
  • 2 2.2 Monthly mean rainfall recorded during the years 1995-1998.
  • Flora
  • 3 Table 2.3 Monthly average of maximum and minimum temp, rainfall and relative humidity recorded at the Kozhikode station of the meteorological department.
  • Fauna
  • 4 Table 2.4 The different types of sub habitats identified in the campus.
  • 3 2.3 Habitat types identified in the Caticut University Campus.
  • 5 Table 2.5 Habitats of Babblers studied at different localities.
  • 4 2.4 Map showing the study sites.
  • III. METHODOLOGY
  • Materials and methods
  • Animal sampling
  • Vegetation sampling
  • 5 3.1 Layout of the multiple stage quadrate method.
  • 6 Table 3.1 Classification of plants.
  • 6 3.2 Layout of the transect line and the vegetation Study quadrates.
  • 7 Table 3.2 Types of canopy with percentage of crown overlap.
  • 8 Table 3.3 Categories of plants based on crown position.
  • 7 3.3 Parts of a Jungle Babbler scored separately in recording allopreening behaviour.
  • IV. HABITAT AND DISTRIBUTION
  • 9 Table 4.1 Frequency of occurrence of Babblers in different subhabitats in the campus
  • 10 Table 4.2 Relationship between various vegetation types and Birds / hectare.
  • 8 4.1 Mean number of birds / hectare at various sites.
  • Effect of vegetation
  • 9 4.2 Relationship between class I plants and birds / hectare at various sites.
  • 10 4.3 Relationship between class II plants and birds / hectare at various sites.
  • 11 4.4 Relationship between class III plants and birds / hectare at various sites.
  • Effect of canopy cover
  • 11 Table 4.3 Relationship between canopy cover and Birds / hectare.
  • 12 4.5 Relationship between canopy cover and birds / hectare.
  • Effect of Foliage height diversity
  • 12 Table 4.4 Relationship between F.H.D and Birds / hectare.
  • Effect of ground cover
  • 13 Table 4.5 Relationship between ground cover and the distribution and abundance of Babblers.
  • 13 4.6 Relationship between ground cover and birds / hectare.
  • Effect of the dencity of plants
  • 14 Table 4.6 Effect of the density of class 1 plants in the distribution and abundance of Babblers.
  • Effect of relative dencity of plants
  • 15 Table 4.7 Distribution and abundance of Babblers in relation to the mean number of trees of height between 1-30 meters.
  • Effect of height of the trees
  • Effect of Food resources
  • 16 Table 4.8 Seasonal variation of abundance of common arthropods at various sites.
  • 14 4.7 Seasonal variation in the number arthropods in the dry season.
  • 15 4.8 Seasonal variation in the number of arthropods in the rainy season.
  • V. BREEDING BIOLOGY OF BABBLERS
  • Plate II
  • Picture 3 The nest of the Whiteheaded Babbler T.affinis.
  • Picture 4 The nest of the Jungle Babbler T.striatus.
  • Breeding season
  • 17 Table 5.1 Number of nests of T.striatus and T.affinis observed from Jan.1997toDec.1998.
  • Rainfall
  • Day length
  • 18 Table 5.2 Plants used for nesting by Babblers.
  • 19 Table 5.3 Number of nests of Babblers on trees and bushes.
  • Biotic Factors
  • Nest site and material
  • Choise of nesting plant
  • 20 Table 5.4 Nesting heights of T.striatus and T.affinis.
  • 21 Table 5.5 Location of nest.
  • Vertical distribution of nests
  • Position of nest in the canopy
  • The nests
  • Plate III
  • Picture 5 Nests of the Babblers, T.striatus and T.affinis.
  • 16 5.1 Nesting heights of T. affinis and T. striatus.
  • 22 Table 5.6 Plants used in nest construction in Taffinis and T.striatus.
  • 23 Table 5.7 Nest size of Babblers Taffinis and T.striatus.
  • 24 Table 5.8 Egg size of T.striatus.
  • 25 Table 5.9 Egg size of T.affinis.
  • The eggs
  • Clutch size
  • 26 Table 5.10 Clutch size of the two species of Babblers.
  • 17 5.2 Clutch size of T. affinis.
  • 18 5.3 Clutch size of T. striatus.
  • 27 Table 5.11 Nesting success in relation to the height of the nest in Babblers.
  • 28 Table 5.12 Fledging success in Babblers, T affinis and T.striatus.
  • Breeding success
  • Fledging success
  • VI. FOOD AND FEEDING HABITS
  • Introduction
  • 29 Table 6.1 Weights and measurements of the three species of Babblers.
  • 30 Table 6.2 Exact feeding spots of Babblers Taffinis and T.striatus.
  • 31 Table 6.3 Foraging methods of Babblers T.affinis and T.striatus.
  • Feeding spots
  • Foraging methods
  • Food Items
  • 32 Table 6.4 Proportion of animal and plant food in the stomach contents of male Jungle Babblers.
  • 33 Table 6.5 Proportion of animal and plant food in the stomach contents of female Jungle Babblers.
  • 34 Table 6.6 Proportion of animal and plant food in the stomach contents of male White headed Babblers.
  • 35 Table 6.7 Proportion of animal and plant food in the stomach contents of female White headed Babblers.
  • 36 Table 6.8 Food items given to the nestlings by the attending adult Babblers T.affinis and T.striatus.
  • Food of nestlings
  • Food of nestlings after one week
  • 37 Table 6.9 Frequency of occurrence of other bird species along with the foraging White headed Babblers
  • Feeding associations
  • 38 Table 6.10 Frequency of occurrence of other bird species along with the foraging Jungle Babblers
  • 39 Table 6.11 Frequency of occurrence of clashes between the jungle Babblerand the White headed Babbler with other species of birds.
  • 40 Table 6.12 Frequency of occurrence of the Three striped palm squirrel along with the foraging Babblers.
  • Plate IV
  • Picture 6 The sentinel of a Whiteheaded Babbler T.affinis.
  • Picture 7 A group of Jungle Babblers feeding on kitchen scraps.
  • VII. BEHAVIOUR
  • Introduction
  • Sentinel behaviour
  • 41 Table 7.1 Seasonal variation of sentinel behaviour observed in T.affinis and T. striatus.
  • 42 Table 7.2 Height of the sentinels perch observed from Jan. 1997 to Dec. 1998.
  • 19 7.1 Height of the sentinel perch observed from Jan 1997 to Dec 1998
  • 43 Table 7.3 Mean time of sentinel behaviour with time of day in T.affinis
  • 20 7.2 Changes in the duration of sentinel behaviour with time of a day in T. affinis.
  • 44 Table 7.4 Mean time of sentinel behaviour with time of day in T.striatus.
  • 21 7.3 Changes in the duration of sentinel behaviour with time of a day in T. striates.
  • 45 Table 7.5 Total duration of sentinel activity in various months observed from Jan. 1997 to Dec. 1998.
  • Vocalization
  • 46 Table 7.6 Frequency of occurrence of various calls in the Whiteheaded Babbler in the year 1998.
  • 47 Table 7.7 Frequency of occurrence of various calls in the Jungle Babbler in the year 1998.
  • 22 7.4 Percentage of occurrence of various calls in T. affinis in the year 1998.
  • 23 7.5 Percentage of occurrence of various calls in T.striatus in the year 1998.
  • Preening behaviour
  • 48 Table 7.8 Allopreening behaviour in T affinis in the year 1997.
  • Plate V
  • Picture 8 Poses adopted by Jungle Babblers during allopreening.
  • 49 Table 7.9 Allopreening behaviour in T.striatus in the year 1997
  • 50 Table 7.10 Frequency of allopreening bouts in the Whiteheaded Babbler in the year 1997 in relation to time of a day.
  • 51 Table 7.11 Frequency of allopreening bouts in the Jungle Babbler in the year 1997 in relation to time of a day.
  • 24 7.6 Areas allopreened in T. affinis.
  • 25 7.7 Areas alloprened in T.striatus
  • 52 Table 7.12 Waking behaviour of Jungle Babbler from Jan. 1997 to Dec. 1998.
  • 53 Table 7.13 Waking behaviour of Whiteheaded Babbler from Jan.1997 to Dec. 1998.
  • Waking behaviour
  • 54 Table 7.14 Roosting behaviour in Jungle Babbler in the year 1998.
  • 55 Table 7.15 Roosting behaviour in Whiteheaded Babbler in the year 1998.
  • Roosting behaviour
  • 56 Table 7.16 Monthly variation in sleeping hours in the Jungle Babbler from Jan. 1997 to Dec. 1998.
  • 57 Table 7.17 Monthly variation in sleeping hours in the Whiteheaded Babbler Taffinis from Jan. 1997 to Dec. 1998.
  • Bathing behaviour
  • 58 Table 7.18 Bathing behaviour - T.affnis.
  • 59 Table 7.19 Bathing behaviour-T striatus.
  • VIII. SUMMARY AND CONCLUSION
  • Recommendations
  • REFERENCES
  • APPENDICES
  • APPENDIX - I LIST OF BIRDS OBSERVED IN THE CALICUT UNIVERSITY CAMPUS
  • APPENDIX - II
  • APPENDIX - III
  • APPENDIX - IV
  • APPENDIX - V