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Solutions of second round 2008: Sooty Shearwater and Wood Warbler; Third round 2008
DB 30:3 (2008) · pagina's 184-185 · Rob S A van Bemmelen, Dick Groenendijk & Jan Eerbeek

Mystery photograph III shows a dark brown swimming bird with its head under water. The all-dark plumage ... therefore be easily excluded. The tail of the mystery bird is a strong pointer to its true identity ... of the email messages with answers were lost during late February 2008. All the entrants of the first ... a marvellous pair of Swarovski SLC 15x56 binoculars. Rob S A van Bemmelen, Stavangerweg 535, 1013 AX ... to masters@dutchbirding.nl • from the website of the Dutch Birding Association at www.dutchbirding.nl

Rare birds in the Netherlands in 2016
DB 39:6 (2017) · pagina's 363-386 · Marcel Haas, Roy Slaterus, Vincent van der Spek & CDNA

at the high tide roost was far from easy, many birders finally connected during its five-day stay ... in a private garden. The non-birding resident reported two birds but only one individual was identified .... It comprises records from 2016 as well as belated and reconsidered records, dating back to 1893, which ... members voted on some or all of the records in this report: Garry Bakker, Rob S A van Bemmelen, Ruud ..., Roy Slaterus, Vincent van der Spek and Rik Winters. Marcel Haas (until May 2017) and Gerjon Gelling

Hoe het begon
Peter's birding year · 5 June 2007 · Peter de Vries

Tja, vreemd genoeg begon dit Big Year niet op de eerste maar op de 27e januari. Samen met Rob Versteeg maakte ik een mooi rondje door Nederland. Mongoolse Pieper, Blauwstaart, Pallas Boszanger, Dwerggors en Grote Burrie rolden we in no time op. Toen begon het een beetje te kriebelen, ‘Dit is toch wel een vliegende start, zoveel goede soorten die ik nu al ... gaan en het geld is ook niet echt een probleem. Dus waarom zou ik er niet voor gaan?

In de

Bulwer’s Petrel at Kressbachsee, Germany, in July 2015
DB 39:3 (2017) · pagina's 183-191 · Andreas Hachenberg, Marta Cruz-Flores & Teresa Militão

have shown a heavy cigar-shaped body with a long neck, long and thin bill and short tail. Matsudaira’s ... Petrel were in the period of the ‘pre-laying exodus’, in May or June (cf figure 3). During that time ... in storm petrels) with highest point of crown in front of eye. Bill stout with heavy tip. Rounded hook .... Leg thin and toes completely webbed. Plumage All-dark sooty brown body-feathers. Upperwing ..., tail-feathers old, having more faded coloration and being abraded. Perforations of wing-feathers

Landelijke Big Day 2015: de runner-up
DB Actueel Online · 28 May 2015 · Folkert Jan Hoogstra
hier zouden moeten zitten zijn ook stil. Verder zit hier een Draaihals, maar dit kost ons minimaal ... die maximaal één of twee soorten zouden opleveren gekeken hoeveel tijd ons dit zou kosten en hoe ... jaar na de ToH-Big Day al voorbereid) evenals Grote Gele Kwikstaart. Ter Apel gaat er dus sowieso uit ... zitten daar op Flamingo na eigenlijk alleen maar soorten die elders ook wel kunnen dus dit is geen ... uit te kammen. Helaas blijft het tot vijf over twaalf stil en vertrekken we zonder Woudaap naar onze

Blog Maart 2024
Dutch Patchwork Challenge · 12 April 2024 · Vincent Stork, Hein Prinsen, Vincent Hart, Martijn Renders, Maurice van Veen, Rob van Bemmelen & Ben Gaxiola
ontdekker(s) van landelijke knallers die zij hebben ontdekt op hun local patch. Ook dit keer deed ... appgroepen Trektellers NH en Vogelmeldingen Alkmaar, in de hoop dat hij ten noorden van ons ook zou ... kwam daarmee nog net niet in de Top 5 van Noord-Holland (zie Ranking). Patrick Snoeken had met een .... Wederom bekaf kom ik aan bij de plek van de Poelruiter. De Steppekiekendief zou nog ... wit te zien in de vleugel. Het leek eigenlijk wel een duiker, maar nee, dat zal wel niet; het

Spaanse Mussen in Nederland in 1997-2014
DB 37:2 (2015) · pagina's 69-79 · Enno B Ebels, Gert-Jan Versteeg & Garry Bakker

de vogel aanvankelijk verdwenen maar rond 10:50 vond Tim de Boer hem terug c 1 km ten westen van de ... hielden Roy de Haas, Leo Heemskerk, Jan van der Laan en Wil Leurs voor de negende keer hun landelijke .... Wenkbrauwstreep smal en wit voor oog, net niet tot aan snavelbasis doorlopend, boven oog onderbroken ... donker kastanjebruin van bovenkop. Wenkbrauwstreep smal en wit voor oog, net niet tot aan snavelbasis ... zichtbaar. Wang vuilwit, opvallend; wit van wang bij ondergrens doorlopend tot op nek en daar niet

Identification of Collared Pratincole and Oriental Pratincole - a critical review of characters
DB 27:1 (2005) · pagina's 1-34 · Gerald Driessens & Lars Svensson

described until the mid 1990s, making them easily remembered by most birders but masking the need ... to secondaries; 2 shorter outer tail-feathers (‘wing projection 2-3 cm beyond tail-tip’); 3 darker ... is expressed as ‘wing projection 2-3 cm beyond tail-tip on perched birds’. In pratincola, the tail ... pratincola have an up to 14 mm shorter tail-tip than the tip of the wings, and some maldivarum have as much as 11 mm longer tail-streamers than the tip of the wings. Although these measurements are taken

New species of booby; New species of scops owl; De meeuw van Scheveningen
DB 20:6 (1998) · pagina's 322-324

preferentially with their own species. George Sangster New species of scops owl Ever since Joe T Marshall’s ... together. During the past 15 years, the two forms have been extensively studied by Roger Pitman ..., with a shorter, shallower bill, shorter legs and longer wings and tail, and also has distinct plumage ... is still incompletely known. Pamela Rasmussen has recently described a new species of scops owl from Great ... lichte tekening die meer beperkt was tot de top van de veer, en de onderstaartdekveren waren zwaarder

Rare Birds In The Netherlands in 2016
CDNA Jaarverslagen · 10 December 2017 · Marcel Haas, Roy Slaterus, Vincent van der Spek & CDNA
at the high tide roost was far from easy, many birders finally connected during its five-day stay. The only ... from all over Europe and attracted a range of national media. During its long stay, it started ... records from 2016 as well as belated and reconsidered records, dating back to 1893, which have been ....

The following CDNA members voted on some or all of the records in this report: Garry Bakker, Rob S ..., Eddy Nieuwstraten, Roy Slaterus, Vincent van der Spek and Rik Winters. Marcel Haas (until May 2017

Tien miljoen vogels in tienduizend uren. Voorjaarstrek bij Breskens 1981-2013
Recensies · 10 May 2014 · Aat Schaftenaar
zien, zal voor velen, net als voor mij, Breskens de eerste kennismaking met dit fenomeen zijn geweest ... Limburgse trektellers leerden zij al dat al die 'zangvogels spec.' wel degelijk op naam te brengen waren ... ook al staan er 40 man die het geluid goed kennen". Of bij Terekruiter: "langsvliegende Terekruiters ... is. Ook is bij algemenere soorten de lineaire trend in de loop der jaren berekend. Dit levert naast ... was nu immers op de onvolprezen website

Hybridization between Yellowhammer and Pine Bunting in Russia
DB 25:1 (2003) · pagina's 17-31 · Eugeny N Panov, Alexander S Roubtsov & Dmitry G Monzikov

: Geelgors naar het oosten en Witkopgors naar het noorden en westen. Dit heeft tot gevolg gehad dat hun ..., making these songs partly similar to those of types 1 (teee) and 3 (teee-sii) of citrinella ... are similar in size and structure and differ slightly, but significantly, in wing and tail lengths ... of local lore at Chita (ChM). Only males were examined that had been obtained during the breeding season .... To deal with the spectrum in all three characters, we distinguished six phenotypic classes (table 2

Solutions of fourth round 2007: Steppe Eagle and Long-legged Buzzard; Fifth round 2007
DB 29:6 (2007) · pagina's 375-376 · Rob S A van Bemmelen, Dick Groenendijk & Jan Eerbeek

is fine with a decurved tip. However, the bill of the mystery bird is too short for a typical Western ... AP Amsterdam, Netherlands • by e-mail to masters@dutchbirding.nl • from the website of the Dutch ..., which shows a rather straight and strong bill with a thick and blunt tip and a thick base ... 2008. Please, indicate if you are subscribed to Dutch Birding. From those entrants having identified ... tail and primaries and shows only fresh feathers. The visible parts of the bird – which include

Italian Sparrow: hybridization with House Sparrow in northern Italy and rufous-breasted morph
DB 37:4 (2015) · pagina's 238-246 · Edwin Winkel

observations in August 2011 and August 2013 and photographs taken during these two periods. Further ... black coating. Other birds (plate 382-383) were heavily moulting but their incomplete bibs still ... grijze tint op de wang (wit bij italiae), een minder prominente witte wenkbrauwstreep (duidelijk ... taking into account (possible) hybrids, and not further discussed here. Study area The province ... was reached only once, on a cold and wet morning after heavy rainfall during the night. The majority

Not every white bird is an albino: sense and nonsense about colour aberrations in birds
DB 28:2 (2006) · pagina's 79-89 · Hein van Grouw

the other -isms! Website: www.birdsofbritain.co.uk/ features/mao-jun-01.htm. Rawles, M E 1953. Origin ... and the correct naming of these aberrations. Almost all whitish aberrations are called ‘(partial ... corone, Heeze, Noord-Brabant, Netherlands, 12 June 2005 (Rob G Bouwman). Albino, juvenile wild bird ...). This is often seen in, eg, Carrion Crows, especially those eating junk food in cities. Brown Brown ... white. For the correct identification and naming of colour mutations, it is necessary to know which

Rare birds in the Netherlands in 2018
DB 41:6 (2019) · pagina's 375-400 · Gerjon Gelling, Vincent van der Spek, James Lidster & CDNA

the second for this inland province in two years’ time, the committee debated whether it could have been ... the readability. Most records are from 2018 but there are also belated and reconsidered records dating back ... Ornithologische Unie (NOU). Records are assessed digitally by eight voting members. This report contains 235 ...). Gerjon Gelling (archivist) and August van Rijn (assistant) supported the committee as non-voting members ... during certain months only. Therefore, in all other plumages only birds ringed as chicks within known

Rare birds in the Netherlands in 2018
CDNA Jaarverslagen · 8 January 2020 · Gerjon Gelling, Vincent van der Spek, James Lidster & CDNA
-voting members by submitting many reports published on national and regional websites. At the start ... the second for this inland province in two years’ time, the committee debated whether it could have been ... records are from 2018 but there are also belated and reconsidered records dating back to 1964 ... (NOU). Records are assessed digitally by eight voting members. This report contains 235 reviewed ... during certain months only. Therefore, in all other plumages only birds ringed as chicks within known

Rare birds in the Netherlands in 2013
DB 36:6 (2014) · pagina's 365-393 · Marcel Haas, Roy Slaterus & CDNA

: Rob S A van Bemmelen, Sander Bot, Nils van Duivendijk (chairman), Dick Groenendijk (former chairman ...), although it was very elusive during the first weeks of its stay. Boreal Owl / Ruigpootuil Aegolius ... his photograph on a website and labelled it as Common Kestrel F tinnunculus ... 2013 as well as belated and reconsidered records, dating back to 1942, which have been evaluated ... Kestrel Falco naumanni dating from 2002 and the (then) fourth Sardinian Warbler S melanocephala from 1996

Ongewoon lichte Sneeuwgors bij Sint Jacobiparochie in november 1989
DB 14:1 (1992) · pagina's 12-13 · Joop Jukema

-Groenland, Spitsbergen en Franz Jozefland (Jon Fjeldså in litt, Kees Roselaar in litt; zie ook ... met lichtbruine zomen en top, t4-6 wit met aan top van buitenvlag zwart streepje langs schacht ...) behoorde de gevangen vogel overigens tot de allerlichtste, samen met een vogel uit Tromsö ... Franeker); de gevangen vogel had een vleugellengte van 115 mm. Ik dank Jon Fjeldså (Zoölogisch Museum ...Mededelingen Ongewoon lichte Sneeuwgors bij Sint Jacobiparochie in november 1989 Op 13 november

KAMTSJATKAAAA!!
Birdingbreaks.nl Reisblog · 24 June 2015 · Nils van Duivendijk
en kil. Julia pikt me op van het vliegveld en verteld dat dit het normale juni-weer is; 'tot nu toe 2 ... uit die personen die ikzelf ook zou slaken (wanna be there coast). Maar Vergeten Kust?

Op de ... verwachting voor de extra dagen die ik hier gepland heb moeten met dit weer in het vooruitzicht flink ... wel de hoogste want daarop gaat en pad naar de top, dat verlost me i.i.g. ook van het 'bruisende ... gr komt het de hele dag niet uit. Blijkbaar zijn ook de vogels aan dit weertype gewend want de

Kleinste Strandloper te Gent in augustus 1996
DB 19:5 (1997) · pagina's 217-220 · Peter Adriaens & Luc Bekaert

slik en de bordjes ‘Verboden toegang/Levensgevaar’ daar niet echt toe uit. Uiteindelijk hakte LB (wel nog steeds twijfelend) de knoop door: hij vond dit exemplaar veel langgerekter dan alle Kleinste die ... donkere teugelstreep, naar snavel toe meer als vrij grote donkere vlek voor oog. Kin ongetekend wit ...). Nogal vierkante kop met opvallend steil voorhoofd. Lichaamsbouw overigens vergelijkbaar met die van ... and the flight call (a clear trreep). Furthermore, the toes did not project beyond the tail in flight and head

Rare Birds In The Netherlands in 2013
CDNA Jaarverslagen · 1 December 2014 · Marcel Haas, Roy Slaterus & CDNA
in this report: Rob S A van Bemmelen, Sander Bot, Nils van Duivendijk (chairman), Dick ..., Arend Wassink and Rik Winters. Marcel Haas supported the committee as a non-voting archivist ... elusive during the first weeks of its stay.

Boreal Owl / Ruigpootuil ..., Gelderland, female, photographed (W Wilmers).
The observer uploaded his photograph on a website ... records from 2013 as well as belated and reconsidered records, dating back to 1942, which have been

Ageing Syrian Serin based on moult and wing-feathers
DB 34:2 (2012) · pagina's 77-84 · Yael Lehnardt, Reuven Yosef & Gidon Perlman

. It appears that Syrian Serins of all age groups did not replace any primaries or secondaries during ... (figure 1). In contrast, the adults had obviously replaced all their wing-, tail- and body-feathers ... July 2008 (Yael Lehnardt). All alula feathers from same moult period, having blackish centre .... Heidelberg. Blasco, J 2012. Identification atlas of birds of Aragon. Website ... are found during both migration seasons and winter at many locations but the species breeds only on mount

Steppearend overnacht in Zeeland
DB Actueel Online · 23 May 2020 · Thomas Luiten & Robert van Tiel
Gier (juni 2019) en een Grijze Wouw (april dit voorjaar). Gisteren nog sloeg hij genadeloos toe toen ... kilometer ten westen van de wijk Mortiere. Vanaf hier heb ik vrij en goed zicht rondom. Na bijna ..., enkele Bruine Kiekendieven) valt om 18.25 uur mijn blik op een roofvogel die vanuit het westen en op ... Robert van Tiel een uur na mijn waarneming de Steppearend oppikt bij Wolphaartsdijk, zo’n 15 ... in de Heerenpolder, ten zuiden van Wolphaartsdijk. Daar laat hij zich tot aan de schemering door een

Two Dickcissels and Dark-eyed Junco on Flores, Azores, in November 2009
DB 33:1 (2011) · pagina's 44-46 · Nico de Vries

white outer tail-feathers and a small pale bill. I had never seen such a bird before and therefore ... notes. Description Size & shape Comparable with Azores Chaffinch. Tail relatively long. Bill .... Description Size & shape Sparrow-like with triangular bill. Tail relatively short. Primary ... contrastingly chestnut-brown. Tertials dark greyish with thin pale brown edges and tip. Uppertail ... Ans and I (Nico de Vries) visited the Azores for the fourth year in a row. We stayed on Flores, one

Atlantic: extended, part 3
Atlantic vs. Pacific: twee Odysseys, één blog · 14 May 2011 · Jan Dekker
bij de Canarische Eilanden; we volgen de route west van Gomera en oost van Hierro en La Palma; dit is de zee-engte waar de dolfijnen/walvissen zouden moeten zijn. Ton (een Engelsman, die wekelijks via ... snel gevolgd door Graham; de Engelsman die ook al sinds Ushuaia aan boord is. Bij het eiland aan ... Sperm Whale, die een tijdje lag te dobberen en vervolgens een duik nam waarbij de staart erg goed te ... Atlantic Spotted Dolphins; uit foto's van later blijkt er ook een paar Routh-toothed Dolphins tussen

How many species of crossbill are there?
DB 18:1 (1996) · pagina's 29-31 · George Sangster

in British Columbia are now faced with the identification of six species of crossbill in the field. All ... How many species of crossbill are there? Subspecies are morphologically or phylogenetically ... species of crossbill has its own narrow range of morphological variation which is only a fraction ...bill populations suggest that they, too, would not interbreed, and that they should be regarded as separate species. Before any new classification of crossbills can be adopted in the general

Presumed escaped White-winged Crossbill at De Zilk in 1963
DB 24:4 (2002) · pagina's 215-217 · Magnus S Robb & Arnoud B van den Berg

of a ‘Two-barred Crossbill’ in captivity at De Zilk and decided to contact the owner. The latter told ... Witvleugelkruisbek L l leucoptera uit Noord-Amerika werd na te zijn gevangen gefotografeerd bij De Zilk ... at Melissant in March 1996 and loss of red coloration in seed-eating birds in captivity. Dutch Birding 21 ... that, at the time, he had noticed the deep-black wings which made him wonder about it possibly being a White-winged Crossbill. Despite its tameness, HN did not see a reason to question the bird’s

Solutions of third round 2007: Magnificent Frigatebird and Turkestan Shrike; Fourth round 2007
DB 29:4 (2007) · pagina's 234-237 · Rob S A van Bemmelen, Dick Groenendijk & Jan Eerbeek

the eye and, more importantly, a dark brown tail, not as reddish as shown by the mystery bird ... the tail, a boldly barred mantle, quite often a grey tinge on the neck and no white at the base ... that there is no white at the outer web of the outer tail-feather as is the case in Red-backed Shrike ... of the tail can not be seen well, several equally spaced tips of tail-feathers are visible, indicating ... to Dutch Birding. From those entrants having identified both mystery birds correctly, two persons

Solutions of sixth round 2007: Royal Tern and Western Rock Nuthatch; First round 2008
DB 30:1 (2008) · pagina's 32-34 · Rob S A van Bemmelen, Dick Groenendijk & Jan Eerbeek

for taking care of the website and helping in various other ways; and, above all, Gino Merchiers ... • by e-mail to masters@dutchbirding.nl • from the website of the Dutch Birding Association ... tail-feathers and the pointed wings were enough to exclude all gull species and to focus on terns only ... tail-feathers are all remaining first-generation feathers and, therefore, it must be in advanced ... Crested Tern (60%) and some for Swift Tern (5%). XII The very short, square tail and the strong legs