Talk:Garden warbler

Orphaned references in Garden Warbler
I check pages listed in Category:Pages with incorrect ref formatting to try to fix reference errors. One of the things I do is look for content for orphaned references in wikilinked articles. I have found content for some of Garden Warbler's orphans, the problem is that I found more than one version. I can't determine which (if any) is correct for this article, so I am asking for a sentient editor to look it over and copy the correct ref content into this article.

Reference named "Baker": From Common Chiffchaff:  From Eurasian Blackcap: Baker (1997) pp. 337–338. 

I apologize if any of the above are effectively identical; I am just a simple computer program, so I can't determine whether minor differences are significant or not. AnomieBOT ⚡ 09:22, 9 June 2013 (UTC)

Images on Flickr
List of Flickr images of Sylvia borin. Little seems to be distinct from what Commons currently has, but there are two pictures of flight (landing and taking off). They aren't that great, however. Chris857 (talk) 15:46, 21 June 2013 (UTC)

Brood parasitism by the Common Cuckoo
The article states that just under 3% of nests of the Garden Warbler are parasitized by the Common Cuckoo. I wanted to check how solid this figure was. I haven't access to the cited source (Shirihai et al (2001) pp. 84–88) from my armchair, so I googled to find a primary source. I found an old publication: David Glue & Robert Morgan (1972): Cuckoo Hosts in British Habitats, Bird Study, 19:4, 187-192 here.

In this publication Table 1 lists records collected between 1939-1971 by the British Trust for Ornithology's Nest Records Scheme. The figures in the table do not support the 3% value in the Wikipedia article. Of 637 Garden Warbler nests only 2 had Cuckoo eggs - or only 0.3% of the nests. The level of parasitism of Reed Warblers is 3%, that of the Rock Pippet is 3.6%.

On the other hand 49% of all the parasitized nests were those of the Dunnock, 14% were Reed Warbler and 14% Meadow Pipit. I'm not an ornithologists and there may be a good reason why the numbers are so different - a factor of 10. Aa77zz (talk) 17:27, 28 June 2013 (UTC)

The paper is behind a pay wall so here is a quote (may have ocr errors):

"Although the number of Cuckoo hosts noted by nest recorders totals 26, three species make up more than three-quarters of the card total- Dunnock 49 per cent, Reed Warbler 14 per cent and Meadow Pipit 14 per cent (Table I). The proportion of nests found by field workers and parasitised by a Cuckoo was high in these three species-2.2 per cent, 3.0 per cent and 3.1 per cent respectively—compared with most other species parasitised. Excluding these three major hosts, plus Rock Pipit, Tree Pipit and Marsh Warbler, the proportion of nests cuckolded was less than 1 per cent for each species, emphasising the low rate of parasitism."

Here is Table I

Host species, Number of nests, nest with cuckoo eggs, percentage parasitised

Dunnock* Prunella modularis 14,788 323 2.2 Reed Warbler* Acrocephalus scirpaceus 2,826 85 3.0 Meadow Pipit* Anthus pratensis 2,659 83 3.1 Robin* Erithacus rubecula 7,649 31 0.4 Linnet Carduelis cannabina 12,400 16 0.1 Pied Wagtail* Motacilla alba 2,125 15 0.7 Rock Pipit* Anthus spinoletta 254 7 3.6 Sedge Warbler* Acrocephalus schoenobaenus 1,700 6 0.4 Tree Pipit* Anthus trivialis 513 5 1.0 Greenfinch Carduelis chloris 6,705 5 <0.1 Spotted Flycatcher* Muscicapa striata 3,718 4 0.1 Common Whitethroat* Sylvia communis 3,339 3 <0.1 Wren* Troglodytes troglodytes 4,576 3 <0.1 Blackbird* Turdus merula 59,770 3 <0.1 Reed Bunting* Emberiza schoeniclus 3,187 3 <0.1 Willow Warbler Phylloscopus trochilus 4,408 2 <0.1 Garden Warbler* Sylvia born 637 2 0.3 Bullfinch Pyrrhula pyrrhula 2,521 2 <0.1 Skylark Alauda arvensis 2,492 1 0.1 Ring Ousel Turdus torquatus 414 1 0.2 Stonechat* Saxi cola torquata 627 1 0.2 Redstart Phoenicurus phoenicurus 1,487 1 <0.1 Wood Warbler Phyllosco pus sibilatrix 570 1 0.2 Marsh Warbler Acrocephalus palustris 34 1 2.9 Yellow Wagtail Motacilla flava 473 1 0.2 Grey Wagtail* Motacilla cinerea 966 1 0.1

* Host species raised young Cuckoo to at least ten days of age. Aa77zz (talk) 20:43, 28 June 2013 (UTC)

Reply
When I wrote the article, the Shirihai pages on Garden Warbler were visible on Google books, not now unfortunately. I have to say that I was surprised how high the warbler figured as a host, if I had had to guess, I would have picked Dunnock/Reed Warbler/Meadow Pipit, as in fact is the case. The figure is clearly suspect, so I've made these edits which remove the percentage and the reference to "second only", and, in fact, address another of your issues by taking out one mention of the Cuckoo all together. Thanks for pursuing this, my journal access is limited to JSTOR, so your research is invaluable. Maybe I should do the Cuckoo next (:  Jimfbleak -  talk to me?  06:00, 29 June 2013 (UTC)
 * The revised text is now fine for the UK. The range of the Garden Warbler is large and the situation is likely to be slightly different elsewhere, but the data are probably not available - most countries will not have the equivalent of the British Trust for Ornithology's Nest Records Scheme. Moksnes et al (J. Orn. 134, 1993: S. 425-434) report parasitism of the nests of the Reed Warbler at 18% in one area of the Czech Republic - much higher than the value for the species in the UK. They don't give an equivalent figure for the Garden Warbler. (It appears that the Glue & Morgan article is not behind a pay wall - although the first page of the downloaded pdf records one's IP address or one's institution). Aa77zz (talk) 10:04, 29 June 2013 (UTC)
 * The Cuckoo is a declining species here, and I would expect higher levels of parasitism in areas with warmer summers. The numbers of available hosts will also affect outcomes, since Reed Warblers in particular have very specific habitat requirements. I'm sure you are right about lack of an equivalent to the BTO, ornithology tends to be more academic in Europe without the amateur contributions to nest recording, ringing and atlas work that are traditional here  Jimfbleak -  talk to me?  10:16, 29 June 2013 (UTC)

External links modified
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Boddaert
I've made a small edit to the article as Pieter Boddaert did not "describe" the garden warbler, he just coined the scientific name. The details:

Edme-Louis Daubenton organised for the production of a series of hand-coloured plates to accompany Buffon's Histoire Naturelle des Oiseaux. The 1008 plates were engraved by François-Nicolas Martinet and published (in batches of 12) in an apparently random order. In 1783 Boddaert produced a catalogue listing the plates and including citations to Buffon's descriptions. He also cited Brisson's Ornithologie (1760) and Linnaeus's Systema Naturae (1758). Boddaert coined new binomial names (mihi) for those species not named by Linnaeus. In the IOC world list Boddaert is the authority for around 190 taxa. Thanks to the BHL we can read the original publications: Cited in article - Aa77zz (talk) 11:14, 8 November 2017 (UTC)