Koldjalg-hõbekajakas (Larus cachinnans)

Pärnu prügila, 7.8.2004

Foto ja kommentaarid: Visa Rauste

Sellises sulestikus isendi määramine võib olla üsna keeruline ilma häält kuulmata. Siiski antud juhul on määramisel kasutatud järgmiste tunnuste kombinatsiooni:
- puhasvalge pea
- üsna intensiivne viirustus kuklas ("kuklavöö")
-valge kõht kus vähe mustrit
- ülapool pole väga hele (nagu analoogsel hõbekajakal eeldaks), ja suured tiivakattesuled selgesti tumedad, moodustades ühtlase paneeli
- sisemiste küünrahoosulgede (tertsiaalide) keskosa tume
- tiiva alapoolel puhasvalged alad millede vahel tumedatest suletippudest moodustuvad tumedad piirjooned. Ka heledamatel hõbekajakatel analoogne muster võimalik, kuid siis on eeldatavasti kogu isendi üldmulje väga hele.
- sabatipu vööt ühtlaselt must, kontrasteerub heleda päranipualaga
- nokk pikk ja antud isendil ka väga õhuke, noka alanurk pole väga esiletungiv
- keha struktuur liigile omaselt sale, pikajalgne ja väike pea keha proportsioonidega võrreldes

Iga eelmainitud tunnus (või mitugi korraga!) võivad esineda ka hõbekajakal ja kõikide tunnuste omavaheline kokkulangevus on määramisel oluline. Suurte kajakate määramises on palju lahtiseid küsimusi ja määramine eeldab ideaalseid vaatlustingimusi.

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Debug Info

Debug Output: show / hide

USER: 
------------------
Array
(
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    [am] => 1
    [liv] => Array
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)

==========================
USER DATA:
------------------
Array
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    [user_name] => Guest
    [groups] => Array
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[group_quota] => 0
    [can_rate_pictures] => 1
    [can_send_ecards] => 0
    [can_post_comments] => 1
    [can_upload_pictures] => 0
    [can_create_albums] => 0
    [pub_upl_need_approval] => 0
    [priv_upl_need_approval] => 0
    [access_level] => 3
    [disk_max] => 0
    [disk_min] => 0
    [has_admin_access] => 0
    [group_name] => Guests
    [can_create_public_albums] => 0
    [can_see_all_albums] => 0
    [group_id] => 3
    [allowed_albums] => Array
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)

==========================
Queries:
------------------
Array
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    [3] => SELECT group_name FROM cpg1410_usergroups WHERE group_id= 3 [bridge/udb_base.inc.php:362] (0.12 ms)
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    [9] => SELECT aid FROM cpg1410_albums WHERE (1  AND visibility != 0 AND visibility != 10000 AND visibility NOT IN (3)) [include/functions.inc.php:1107] (0.13 ms)
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    [12] => SELECT COUNT(*) FROM cpg1410_pictures
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    [15] => SELECT r.pid, r.aid, filepath, filename, url_prefix, pwidth, pheight, filesize, ctime, r.title, r.keywords, r.votes, pic_rating, hits, caption, r.owner_id FROM cpg1410_pictures AS r
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                    ORDER BY position ASC, pid ASC
                     LIMIT 89 ,1 [include/functions.inc.php:1436] (1.31 ms)
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                    ORDER BY position ASC, pid ASC
                     LIMIT 90 ,1 [include/functions.inc.php:1436] (1.13 ms)
    [17] => SELECT r.pid FROM cpg1410_pictures AS r
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                     LIMIT 88 ,1 [include/functions.inc.php:1436] (1.13 ms)
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                     LIMIT 0 ,1 [include/functions.inc.php:1436] (1.1 ms)
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                    ORDER BY position ASC, pid ASC
                     LIMIT 0 ,1 [include/functions.inc.php:1436] (1.16 ms)
    [20] => SELECT title, comments, votes, category, aid FROM cpg1410_albums WHERE aid='2' LIMIT 1 [displayimage.php:420] (0.15 ms)
    [21] => SELECT extension, mime, content, player FROM cpg1410_filetypes [include/functions.inc.php:5949] (0.18 ms)
    [22] => SELECT null FROM cpg1410_votes WHERE pic_id= 1015 AND user_md5_id='182d8712335d65f1efbdc48f7359920f' [include/themes.inc.php:3624] (0.14 ms)
    [23] => SELECT null FROM cpg1410_vote_stats WHERE pid = 1015 AND ip = '18.117.192.64' [include/themes.inc.php:3625] (0.12 ms)
    [24] => SELECT user_name as user_name FROM `d89368sd392874`.cpg1410_users WHERE user_id = '1' [bridge/udb_base.inc.php:59] (0.11 ms)
    [25] => SELECT exifData FROM cpg1410_exif WHERE pid = 1015 [include/exif_php.inc.php:40] (0.12 ms)
    [26] => SELECT COUNT(msg_id) FROM cpg1410_comments WHERE pid='1015' [include/themes.inc.php:3757] (0.11 ms)
    [27] => SELECT r.pid, r.aid, filepath, filename, url_prefix, pwidth, pheight, filesize, ctime, r.title FROM cpg1410_pictures AS r
                    WHERE ((aid = 2  ) )AND approved='YES'
                    ORDER BY position ASC, pid ASC
                     LIMIT 87 ,5 [include/functions.inc.php:1436] (1.18 ms)
    [28] => SELECT null FROM cpg1410_albums WHERE category < 10000 AND uploads='YES' AND (visibility = '0' OR visibility IN (3)) AND aid = '2' [include/themes.inc.php:2063] (0.15 ms)
    [29] => SELECT null FROM cpg1410_albums WHERE category < 10000 AND uploads='YES' AND (visibility = '0' OR visibility IN (3)) AND aid = '2' [include/themes.inc.php:2063] (0.07 ms)
)

==========================
GET :
------------------
Array
(
    [album] => 2
    [pid] => 1015
)

==========================
POST :
------------------
Array
(
)

==========================
COOKIE :
------------------
Array
(
)

==========================

File information
Filename:	LARCAC-Pärnu-7_8_04-Rauste-.jpg
Album name:	admin / Haruldused/ Rarities
Filesize:	108 KiB
Date added:	Oct 23, 2008
Dimensions:	700 x 500 pixels
Displayed:	1068 times
URL:	http://www.estbirding.ee/pildid/displayimage.php?pid=1015
Favorites:	Add to Favorites