The Ecology and Control of the Red-billed Weaver Bird (Quelea Quelea L.) in Northeast Nigeria |
Contents
Introduction | 3 |
The Redbilled Weaver Bird | 10 |
Rainfall | 25 |
Copyright | |
19 other sections not shown
Common terms and phrases
Acacia annual grasses application altitude application height average avicide Balanites aegyptiaca Benue river Benue Valley bird population birds migrate Brachiaria breeding Cameroon Chad Basin control measures control team Dactyloctenium aegyptium damage prevention degree of atomization drift spraying droplet size classes dry season Echinochloa effective feeding fixed wing aircraft flight zone flocks of birds grains ground equipment Gulumba hatched helicopter hilum killed l/ha Lake Chad Maiduguri Main Zone method migration million adult birds million birds minutes moult nesting sites nesting-site control nesting-site period Nigeria northeastern Nigeria Numan number of birds population area population development Queletox rainfalls rainy season reconnaissance region roosting sites roosting-site period Rottboellia seeds soil Sorghum arundinaceum Sorghum bicolor species spray cloud spray trail stacking density Sudan sunset survey treatment trees vmd of 32 vmd of 45 volume concentration weaver birds weaver-bird control wind speed Yedseram young birds Ziziphus mauritiana