The moults of captive Scottish ptarmigan ( Lagopus mutus)
The moults of captive Scottish ptarmigan were studied at Banchory, north‐east Scotland from December 1968 to February 1971. In the autumn moult (June to September) which included the primaries, cock ptarmigan moulted earlier and more completely than hens. In the winter moult (September to February)...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Wiley
1973
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Online Access: | http://dx.doi.org/10.1111/j.1469-7998.1973.tb02214.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-7998.1973.tb02214.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.1973.tb02214.x https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.1973.tb02214.x |
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crwiley:10.1111/j.1469-7998.1973.tb02214.x 2024-06-02T08:10:01+00:00 The moults of captive Scottish ptarmigan ( Lagopus mutus) Hewson, Raymond 1973 http://dx.doi.org/10.1111/j.1469-7998.1973.tb02214.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-7998.1973.tb02214.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.1973.tb02214.x https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.1973.tb02214.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Zoology volume 171, issue 2, page 177-187 ISSN 0952-8369 1469-7998 journal-article 1973 crwiley https://doi.org/10.1111/j.1469-7998.1973.tb02214.x 2024-05-03T11:39:54Z The moults of captive Scottish ptarmigan were studied at Banchory, north‐east Scotland from December 1968 to February 1971. In the autumn moult (June to September) which included the primaries, cock ptarmigan moulted earlier and more completely than hens. In the winter moult (September to February) hens moulted earlier and both sexes moulted more completely than in spring. In the spring moult (February to June) cocks moulted more rapidly to begin with but by mid‐April hens had caught up and thereafter moulted at least as rapidly as cocks. When kept indoors at slightly higher temperatures ptarmigan grew more pigmented feathers during the winter moult. In a colder winter the birds became whiter than in a milder one. First‐winter ptarmigan completed the winter moult later than older birds. Birds from the Cairnwell hills had more dark feathers in winter than those from the eastern Cairngorms. There was no correlation between the start or finish of egg‐laying and moulting. Article in Journal/Newspaper Lagopus mutus Wiley Online Library Journal of Zoology 171 2 177 187 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
The moults of captive Scottish ptarmigan were studied at Banchory, north‐east Scotland from December 1968 to February 1971. In the autumn moult (June to September) which included the primaries, cock ptarmigan moulted earlier and more completely than hens. In the winter moult (September to February) hens moulted earlier and both sexes moulted more completely than in spring. In the spring moult (February to June) cocks moulted more rapidly to begin with but by mid‐April hens had caught up and thereafter moulted at least as rapidly as cocks. When kept indoors at slightly higher temperatures ptarmigan grew more pigmented feathers during the winter moult. In a colder winter the birds became whiter than in a milder one. First‐winter ptarmigan completed the winter moult later than older birds. Birds from the Cairnwell hills had more dark feathers in winter than those from the eastern Cairngorms. There was no correlation between the start or finish of egg‐laying and moulting. |
format |
Article in Journal/Newspaper |
author |
Hewson, Raymond |
spellingShingle |
Hewson, Raymond The moults of captive Scottish ptarmigan ( Lagopus mutus) |
author_facet |
Hewson, Raymond |
author_sort |
Hewson, Raymond |
title |
The moults of captive Scottish ptarmigan ( Lagopus mutus) |
title_short |
The moults of captive Scottish ptarmigan ( Lagopus mutus) |
title_full |
The moults of captive Scottish ptarmigan ( Lagopus mutus) |
title_fullStr |
The moults of captive Scottish ptarmigan ( Lagopus mutus) |
title_full_unstemmed |
The moults of captive Scottish ptarmigan ( Lagopus mutus) |
title_sort |
moults of captive scottish ptarmigan ( lagopus mutus) |
publisher |
Wiley |
publishDate |
1973 |
url |
http://dx.doi.org/10.1111/j.1469-7998.1973.tb02214.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-7998.1973.tb02214.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.1973.tb02214.x https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.1973.tb02214.x |
genre |
Lagopus mutus |
genre_facet |
Lagopus mutus |
op_source |
Journal of Zoology volume 171, issue 2, page 177-187 ISSN 0952-8369 1469-7998 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1469-7998.1973.tb02214.x |
container_title |
Journal of Zoology |
container_volume |
171 |
container_issue |
2 |
container_start_page |
177 |
op_container_end_page |
187 |
_version_ |
1800755808080756736 |