The British Trust for Ornithology
HOBBY
Falco subbuteo

Hobby © John Marchant
 
Conservation Listings

Unlisted/Green
Biodiversity Steering Group Conservation Concern List
Long term trend
UK: Increase
 
Status Summary
This species is poorly monitored by standard BTO monitoring schemes due to its low population density and unobtrusive habits. Its distribution has spread markedly northwards in England since the 1970s (Gibbons et al. 1993), perhaps linked to increases in its dragonfly prey supplies (Prince & Clarke 1995) and a decreasing dependency on its traditional heathland habitat. Small annual samples of nest record cards permit analysis only of brood size, which appears not to have changed substantially over the last 30 years.
 

Annual breeding population changes for this species
are not currently monitored by BTO
Table of productivity information for Hobby
Variable Period
(yrs)		 Years Mean
annual
sample		 Trend Predicted
in first year		 Predicted
in last year		 Change Comment
Brood size 31 1968-1999 16 None       Small sample
 
Insufficient data on clutch size
available for this species

 

Insufficient data on nest failure
available for this species

 

 

Insufficient data on nestling failure
available for this species

 

 

Insufficient data on laying date
available for this species

 

 

Insufficient data on CES
available for this species

 




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This report should be cited as:
Baillie, S.R., Crick, H.Q.P., Balmer, D.E., Beaven, L.P., Downie, I.S., Freeman, S.N., Leech, D.I., Marchant, J.H.,
Noble, D.G., Raven, M.J., Simpkin, A.P., Thewlis, R.M. and Wernham, C.V. (2002) Breeding Birds in the Wider
Countryside: their conservation status 2001. BTO Research Report No. 278. BTO, Thetford. (http://www.bto.org/birdtrends)

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