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Download Report BTO Research Report 384 The London Bird Project Authors Dan Chamberlain, Su Gough, Howard Vaughan, Graham Appleton, Steve Freeman, Mike Toms, Juliet Vickery, David Noble A report to The Bridge House Estates Trust January 2005 © British Trust for Ornithology British Trust for Ornithology, The Nunnery, Thetford, Norfolk IP24 2PU Registered Charity No. 216652 British Trust for Ornithology The London Bird Project BTO Research Report No. 384 Dan Chamberlain, Su Gough, Howard Vaughan, Graham Appleton, Steve Freeman, Mike Toms, Juliet Vickery, David Noble Published in January 2005 by the British Trust for Ornithology The Nunnery, Thetford, Norfolk, IP24 2PU, UK Copyright © British Trust for Ornithology 2005 ISBN 1-904870-18-X All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form, or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the publishers CONTENTS Page No. List of Tables .........................................................................................................................................3 List of Figures........................................................................................................................................5 List of Appendices.................................................................................................................................7 Executive Summary ..............................................................................................................................9 Chapter 1 Birds And Habitat In London’s Public Green Spaces: Results Of The London Bird Project ......................................................................15 1. Introduction............................................................................................................................15 2. Aims ....................................................................................................................................16 2.1 Site Selection.................................................................................................................16 3. Methods...................................................................................................................................16 3.1 Analysis .........................................................................................................................17 4. Results ....................................................................................................................................18 4.1 Habitat...........................................................................................................................18 4.2 Bird Data.......................................................................................................................19 4.3 Species Richness ...........................................................................................................20 4.4 Species Density .............................................................................................................21 4.5 Squirrels........................................................................................................................24 5. Discussion ...............................................................................................................................25 Chapter 2 Habitat Associations Of Breeding Birds In London’s Public Green Spaces .......59 1. Introduction............................................................................................................................59 2. Aims.........................................................................................................................................59 3. Methods...................................................................................................................................59 4. Results.....................................................................................................................................60 4.1 Habitat Associations at the Site Level ........................................................................60 4.2 Habitat Associations at the Patch Level.....................................................................61 5. Discussion ...............................................................................................................................62 Chapter 3 Broad-Scale Habitat Associations Of Birds In Greater London: An Analysis Using Breeding Bird Survey Data......................................................69 1. Introduction............................................................................................................................69 2. Aims.........................................................................................................................................69 3. Methods...................................................................................................................................69 4. Analysis...................................................................................................................................70 5. Results ....................................................................................................................................71 5.1 Basic Statistics ..............................................................................................................71 5.2 Habitat Associations.....................................................................................................71 6. Discussion ...............................................................................................................................73 BTO Research Report No. 384 1 January 2005 Page No. Chapter 4 Population Trends And Habitat Associations Of Garden Birds In Greater London....................................................................................................85 1. Introduction............................................................................................................................85 2. Aims.........................................................................................................................................85 3. Methods...................................................................................................................................85 Statistical Analysis .......................................................................................................86 4. Results ....................................................................................................................................87 Annual Trends..............................................................................................................87 Effects of Habitat on Bird Occurrence and Species Richness..................................87 Ordination of Habitat Data.........................................................................................88 5. Discussion ...............................................................................................................................89 Chapter 5 Ordinal Regression And Interval-Censored Poisson Models Of The Relationship Between Garden Habitat And Bird Abundance In GBW ............103 1. Introduction..........................................................................................................................103 2. Aims.......................................................................................................................................103 3. Methods.................................................................................................................................103 3.1 Analysis .......................................................................................................................103 4. Results ..................................................................................................................................104 5. Discussion .............................................................................................................................107 Chapter 6 Birds In Greater London: A Comparison Of Surveys ........................................127 1. Introduction..........................................................................................................................127 2. Aims.......................................................................................................................................127 2.1 Statistical Analysis .....................................................................................................127 3. Results ..................................................................................................................................127 4. Discussion .............................................................................................................................129 Chapter 7 An Overview Of The London Birds Project.........................................................139 Acknowledgements ...........................................................................................................................141 References..........................................................................................................................................143 Appendices.........................................................................................................................................147 BTO Research Report No.
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