By Lars Svensson
Following on from its highly profitable release in 1999, Collins fowl advisor - the final word reference e-book for poultry fanatics - now enters its moment variation. With increased textual content and extra color illustrations, the second one version of the highly profitable Collins fowl consultant is a needs to for each birdwatcher. The publication presents all of the details had to determine any species at any time of the 12 months, masking measurement, habitat, diversity, identity and voice. Accompanying each species access is a distribution map and illustrations exhibiting the species in the entire significant plumages (male, girl, immature, in flight, at relaxation, feeding: no matter what is important). moreover, every one staff of birds contains an creation which covers the key difficulties focused on choosing or staring at them: tips on how to organise a sea observing journey, easy methods to separate birds of prey in flight, which duck hybrids may be stressed with which major species. those and lots of different universal birdwatching questions are replied. the combo of definitive textual content, updated distribution maps and magnificent illustrations, all in one quantity, makes this e-book the final word box advisor, crucial on each bookshelf and birdwatching journey.
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Extra resources for Collins Bird Guide
0' eclipse prominent! tail white bands ad. 0' - . I l1ght grey 34 WILDFOWL WILDFOWL HYBRrDS Although wild birds do not normally ma~e with bir~s other than representatives of their own spectes, excepttons do occur. Generally, a cross between two different s~ecies is most likely to occur in areas where one of the two IS much less common than the other; interspecific barriers may break down if a bird in breeding season cannot easily find a mate of its own kind, and reasonably similar ones are at hand.
Rare winter visi to,: in Bri tain, occurring especially inN. Slightly smaller and more compac/ than Eider, body and btl! lh mangular erect 'sails'. In flight, white patches on forewmg. - Adult ~ : Distinguished from Eider by shorter, darker bill, with bulging feathering above culmen reaching farther down on bill than feathering at sides; dark marks on body plumage more open, U-shaped and have dark central spot, especially on mantle and flanks; size slightly smaller often rather pale cheeks and area around bill-base, dark gape contrasting (and has 'happy-looking' expression).
In flight, very striking, broad,pure whitewingbars running to tip of wing. On all but some juveniles, white undertai/ and (separated) white belly patch are obvious. - Adult o breeding: Whole plumage deep chestnut (tinged purplish), darkest on back and palest on flanks, except for white undertaif and belly; narrow black neck-collar (rarely seen). Eye white. -Adult ~: Dark brown with reddish tinge on head. Pure white undertail. Eye dark. Note head/bill profile, which separates from Tufted Duck, as do longer and broader white wing-bars in Hight.