Artikoli Xjentifiċi

Corvus monedula

1. Għajnejn fil-bejta jistgħu jbeżżgħu l-intrużi (royalsocietypublishing.org)
   2014. Titolu oriġinali: Salient eyes deter conspecific nest intruders in wild jackdaws ( Corvus monedula ). DOI. test sħiħ b’xejn/kopja miftuħa.
2. Sinjali bil-vuċi u deċiżjonijiet konġunti għal tluq tal-grupp (cell.com)
   2022. Titolu oriġinali: Vocally mediated consensus decisions govern mass departures from jackdaw roosts. DOI. test sħiħ b’xejn/kopja miftuħa.
3. Vortiċi ta’ l-arja f’titjira bil-mod (journals.biologists.com)
   1986. Titolu oriġinali: The Wake of A Jackdaw (Corvus Monedula) in Slow Flight. DOI. test sħiħ b’xejn/kopja miftuħa.
4. Il-qsim tal-ikel u l-oġġetti jibni rabtiet soċjali fl-għasafar żgħar (doi.org)
   2007. Titolu oriġinali: The role of food- and object-sharing in the development of social bonds in juvenile jackdaws (Corvus monedula). DOI. DOI jew paġna tal-artiklu.
5. Il-qsim tal-ikel: xiex, għaliex u ma’ min? (doi.org)
   2006. Titolu oriġinali: Food sharing in jackdaws, Corvus monedula: what, why and with whom?. DOI. DOI jew paġna tal-artiklu.
6. Logħob tal-oġġett u azzjonijiet kombinati fil-korvidi (doi.org)
   2014. Titolu oriġinali: Combinatory actions during object play in psittaciformes (Diopsittaca nobilis, Pionites melanocephala, Cacatua goffini) and corvids (Corvus corax, C. monedula, C. moneduloides).. DOI. DOI jew paġna tal-artiklu.
7. Ordni tat-tfaqqis, tkabbir u titjir tal-flieles (doi.org)
   2003. Titolu oriġinali: Sex‐specific hatching order, growth rates and fledging success in jackdaws Corvus monedula. DOI. DOI jew paġna tal-artiklu.
8. Struttura soċjali u kurżità dwar ikel ġdid fil-magħluq (doi.org)
   1983. Titolu oriġinali: Relationships Between Social Structure and Response To Novelty in Captive Jackdaws, Corvus Monedula L. Ii. Response To Novel Palatable Food. DOI. DOI jew paġna tal-artiklu.
9. Ikel żejjed u riżultati tat-tbejjit (doi.org)
   1996. Titolu oriġinali: Effects of experimental food provisioning on reproduction in the Jackdaw Corvus monedula, a semi‐colonial species. DOI. DOI jew paġna tal-artiklu.
10. Għażliet prosoċjali skont ir-riċevitur (journals.plos.org)
    2012. Titolu oriġinali: Recipients Affect Prosocial and Altruistic Choices in Jackdaws, Corvus monedula. DOI. test sħiħ b’xejn/kopja miftuħa.

Corvus frugilegus

1. Fehim tal-kuntatt fiżiku (doi.org)
   2006. Titolu oriġinali: What do rooks (Corvus frugilegus) understand about physical contact?. DOI. DOI jew paġna tal-artiklu.
2. Rikonoxximent tal-aħwa (doi.org)
   1984. Titolu oriġinali: Sibling recognition in the rook (). DOI. DOI jew paġna tal-artiklu.
3. Strateġiji għall-għalf (doi.org)
   2010. Titolu oriġinali: Foraging Strategies of Rooks (Corvus frugilegus): A Simulation. DOI. DOI jew paġna tal-artiklu.
4. Influwenza tat-tjur H5 u infettività (doi.org)
   2020. Titolu oriġinali: Pathogenicity of H5 highly pathogenic avian influenza virus in rooks (Corvus frugilegus). DOI. DOI jew paġna tal-artiklu.
5. Influwenza soċjali fuq it-tħaffir (doi.org)
   2008. Titolu oriġinali: Social influences on foraging by rooks (Corvus frugilegus). DOI. DOI jew paġna tal-artiklu.
6. Użu tal-għodda (doi.org)
   1982. Titolu oriġinali: Tool-use by a rook (Corvus frugilegus), and its causation. DOI. DOI jew paġna tal-artiklu.
7. Soluzzjoni ta’ problemi fiżiċi (cell.com)
   2006. Titolu oriġinali: Investigating Physical Cognition in Rooks, Corvus frugilegus. DOI. test sħiħ b’xejn/kopja miftuħa.
8. Kooperazzjoni fis-soluzzjoni tal-problemi (ncbi.nlm.nih.gov)
   2008. Titolu oriġinali: Cooperative problem solving in rooks ( Corvus frugilegus ). DOI. test sħiħ b’xejn/kopja miftuħa.
9. Kuntatt soċjali wara kunflitt (cell.com)
   2007. Titolu oriġinali: Postconflict Third-Party Affiliation in Rooks, Corvus frugilegus. DOI. test sħiħ b’xejn/kopja miftuħa.
10. Bidliet ormonali matul ir-rebbiegħa u l-ħarifa (doi.org)
    1980. Titolu oriġinali: Endocrine changes associated with spring and autumn sexuality of the Rook, Corvus frugilegus. DOI. DOI jew paġna tal-artiklu.

Corvus corone u Corvus cornix

1. Ikel, predazzjoni u prestazzjoni tat-tgħammir (doi.org)
   1974. Titolu oriġinali: The Effect of Food and Predation on Breeding Density and Success, Clutch Size and Laying Date of the Crow (Corvus corone L.). DOI. DOI jew paġna tal-artiklu.
2. Ħabitat, tkabbir u fitness (doi.org)
   1989. Titolu oriġinali: Habitat-Specific Growth and Fitness in Carrion Crows (Corvus corone corone). DOI. DOI jew paġna tal-artiklu.
3. Permanenza tal-oġġett u traċċar tal-oġġett (doi.org)
   2011. Titolu oriġinali: Ontogeny of object permanence and object tracking in the carrion crow, Corvus corone. DOI. DOI jew paġna tal-artiklu.
4. Urbanizzazzjoni fl-ibliet Finlandiżi (doi.org)
   2002. Titolu oriġinali: Urban development from an avian perspective: causes of hooded crow (Corvus corone cornix) urbanisation in two Finnish cities. DOI. DOI jew paġna tal-artiklu.
5. Kif tkabbir imnaqqas jaffettwa l-istorja tal-ħajja (doi.org)
   1989. Titolu oriġinali: Life-History Consequences of Growth Rate Depression: An Experimental Study on Carrion Crows (Corvus corone corone L.). DOI. DOI jew paġna tal-artiklu.
6. Tnissil kooperattiv fit-Tramuntana ta’ Spanja (doi.org)
   2002. Titolu oriġinali: COOPERATIVELY BREEDING GROUPS OF CARRION CROW(CORVUS CORONE CORONE) IN NORTHERN SPAIN. DOI. DOI jew paġna tal-artiklu.
7. Benefiċċji diretti ta ‘għajxien ta’ grupp (doi.org)
   2002. Titolu oriġinali: Direct fitness benefits of group living in a complex cooperative society of carrion crows, Corvus corone corone. DOI. DOI jew paġna tal-artiklu.
8. Qrib u għajnuna mat-tfal (doi.org)
   2004. Titolu oriġinali: Effect of parentage and relatedness on the individual contribution to cooperative chick care in carrion crows Corvus corone corone. DOI. DOI jew paġna tal-artiklu.
9. Daqs tal-grupp u riżultati tat-tbejjit (doi.org)
   2007. Titolu oriġinali: Reproductive success increases with group size in cooperative carrion crows, Corvus corone corone. DOI. DOI jew paġna tal-artiklu.
10. Kolonizzazzjoni u għażla ta’ postijiet fejn wieħed jgħix f’ambjent urban (hdl.handle.net)
    2014. Titolu oriġinali: Recent colonization and nest site selection of the Hooded Crow (Corvus corone cornix L.) in an urban environment. DOI. test sħiħ b’xejn/kopja miftuħa.

Corvus corax

1. Tagħlim u rejd fil-caches tal-ikel (doi.org)
   2002. Titolu oriġinali: Observational learning and the raiding of food caches in ravens, Corvus corax: is it ‘tactical’ deception?. DOI. DOI jew paġna tal-artiklu.
2. Traċċar tal-għajnejn madwar ostakli (ncbi.nlm.nih.gov)
   2004. Titolu oriġinali: Ravens,Corvus corax, follow gaze direction of humans around obstacles. DOI. test sħiħ b’xejn/kopja miftuħa.
3. Differenza bejn kompetituri infurmati u injoranti (ncbi.nlm.nih.gov)
   2005. Titolu oriġinali: Ravens, Corvus corax , differentiate between knowledgeable and ignorant competitors. DOI. test sħiħ b’xejn/kopja miftuħa.
4. Foraġġ fil-karkassi fix-xitwa (doi.org)
   1988. Titolu oriġinali: Winter foraging at carcasses by three sympatric corvids, with emphasis on recruitment by the raven, Corvus corax. DOI. DOI jew paġna tal-artiklu.
5. Soluzzjoni ta’ problemi u għarfien (doi.org)
   1995. Titolu oriġinali: An Experimental Investigation of Insight in Common Ravens (Corvus corax). DOI. DOI jew paġna tal-artiklu.
6. Kif il-kompetituri jaffettwaw il-caches tal-ikel (doi.org)
   1998. Titolu oriġinali: Influence of competitors on caching behaviour in the common raven,Corvus corax. DOI. DOI jew paġna tal-artiklu.
7. Kuntatt mal-ilpup waqt it-tħaffir tax-xitwa (doi.org)
   2002. Titolu oriġinali: Common ravens, Corvus corax, preferentially associate with grey wolves, Canis lupus, as a foraging strategy in winter. DOI. DOI jew paġna tal-artiklu.
8. Storja Ġenetika fid-Dinja l-Qadima u l-Ġdida (doi.org)
   2006. Titolu oriġinali: Genetic signatures of intermediate divergence: population history of Old and New World Holarctic ravens (Corvus corax). DOI. DOI jew paġna tal-artiklu.
9. Tolleranza, premju u kooperazzjoni (nature.com)
   2015. Titolu oriġinali: Tolerance and reward equity predict cooperation in ravens (Corvus corax). DOI. test sħiħ b’xejn/kopja miftuħa.
10. Żvilupp tat-traċċar tal-għajnejn (doi.org)
    2007. Titolu oriġinali: Gaze following in common ravens, Corvus corax: ontogeny and habituation. DOI. DOI jew paġna tal-artiklu.

Pica pica

1. Test tal-mera u awto-rikonoxximent (journals.plos.org)
   2008. Titolu oriġinali: Mirror-Induced Behavior in the Magpie (Pica pica): Evidence of Self-Recognition. DOI. test sħiħ b’xejn/kopja miftuħa.
2. Monitoraġġ tal-koppja (doi.org)
   1979. Titolu oriġinali: Mate guarding in the magpie Pica pica. DOI. DOI jew paġna tal-artiklu.
3. Ikel żejjed u suċċess tat-tbejjit (doi.org)
   1981. Titolu oriġinali: Effect of Additional Food on Reproductive Success in the Magpie (Pica pica). DOI. DOI jew paġna tal-artiklu.
4. X’-fejn-meta memorja (doi.org)
   2008. Titolu oriġinali: What–Where–When memory in magpies (Pica pica). DOI. DOI jew paġna tal-artiklu.
5. Popolazzjoni, fluss tal-ġeni u parassitiżmu tal-cuckoo (academic.oup.com)
   1999. Titolu oriġinali: COMPARATIVE POPULATION STRUCTURE AND GENE FLOW OF A BROOD PARASITE, THE GREAT SPOTTED CUCKOO (CLAMATOR GLANDARIUS), AND ITS PRIMARY HOST, THE MAGPIE (PICA PICA). DOI. test sħiħ b’xejn/kopja miftuħa.
6. Permanenza tal-oġġett fl-għasafar li jiġbru l-ikel (doi.org)
   2000. Titolu oriġinali: Development of object permanence in food-storing magpies (Pica pica).. DOI. DOI jew paġna tal-artiklu.
7. Difiża immuni fil-frieħ f’boton ta’ sostituzzjoni (ncbi.nlm.nih.gov)
   1997. Titolu oriġinali: Reduced immunocompetence of nestlings in replacement clutches of the European magpie (Pica pica). DOI. test sħiħ b’xejn/kopja miftuħa.
8. Il-valur taż-żgħażagħ u d-difiża tal-bejta (doi.org)
   1989. Titolu oriġinali: Offspring reproductive value and nest defense in the magpie (Pica pica). DOI. DOI jew paġna tal-artiklu.
9. Tmigħ selettiv ta’ flieles tal-kukku akbar spotted (doi.org)
   1995. Titolu oriġinali: Preferential allocation of food by magpies Pica pica to great spotted cuckoo Clamator glandarius chicks. DOI. DOI jew paġna tal-artiklu.
10. Tallaba żgħażagħ u riskju ta ‘predazzjoni (doi.org)
    1992. Titolu oriġinali: The increase in risk of predation with begging activity in broods of Magpies Pica pica. DOI. DOI jew paġna tal-artiklu.

Garrulus glandarius

1. Użu u tagħlim tal-għodda (doi.org)
   2011. Titolu oriġinali: Tool-use and instrumental learning in the Eurasian jay (Garrulus glandarius). DOI. DOI jew paġna tal-artiklu.
2. Permanenza tal-Oġġetti (doi.org)
   2007. Titolu oriġinali: Piagetian object permanence and its development in Eurasian jays (Garrulus glandarius). DOI. DOI jew paġna tal-artiklu.
3. Ippjanar għall-bżonnijiet futuri (royalsocietypublishing.org)
   2011. Titolu oriġinali: Eurasian jays ( Garrulus glandarius ) overcome their current desires to anticipate two distinct future needs and plan for them appropriately. DOI. test sħiħ b’xejn/kopja miftuħa.
4. Grad soċjali, suċċess tat-tnissil u popolazzjoni (doi.org)
   1990. Titolu oriġinali: Despotic Distribution, Unequal Reproductive Success, and Population Regulation in the Jay Garrulus Glandarius L.. DOI. DOI jew paġna tal-artiklu.
5. Kif jirreaġixxu l-warblers għall-predaturi tal-bejta (doi.org)
   1991. Titolu oriġinali: Responses of breeding Reed Warblers Acrocephalus scirpaceus to mounts of Sparrowhawk Accipiter nisus, Cuckoo Cuculus canorus and Jay Garrulus glandarius. DOI. DOI jew paġna tal-artiklu.
6. Għażla tal-ġandar (doi.org)
   2007. Titolu oriġinali: Not only size matters: Acorn selection by the European jay (Garrulus glandarius). DOI. DOI jew paġna tal-artiklu.
7. L-isquirils ħomor jirreaġixxu għall-ħoss ta ‘twissija (doi.org)
   2006. Titolu oriġinali: Red Squirrels (Sciurus vulgaris) Respond to Alarm Calls of Eurasian Jays (Garrulus glandarius). DOI. DOI jew paġna tal-artiklu.
8. Tixrid tal-ġandar minn speċi differenti tal-ballut (pureportal.coventry.ac.uk)
   2014. Titolu oriġinali: Predation and dispersal of acorns by European Jay ( Garrulus glandarius ) differs between a native (Pedunculate Oak Quercus robur ) and an introduced oak species (Northern Red Oak Quercus rubra ) in Europe. DOI. test sħiħ b’xejn/kopja miftuħa.
9. Postijiet aktar kwieti għall-ħabi tal-ikel meta xi ħadd jista’ jisraq (royalsocietypublishing.org)
   2012. Titolu oriġinali: Careful cachers and prying pilferers: Eurasian jays ( Garrulus glandarius ) limit auditory information available to competitors. DOI. test sħiħ b’xejn/kopja miftuħa.
10. Strateġiji għall-ħabi jew is-serq tal-ikel (doi.org)
    2012. Titolu oriġinali: Eurasian jays, Garrulus glandarius, flexibly switch caching and pilfering tactics in response to social context. DOI. DOI jew paġna tal-artiklu.

Nucifraga caryocatactes

1. Niskopru mill-ġdid żrieragħ moħbija (doi.org)
   1980. Titolu oriġinali: Recovery of Cached Seeds by a CaptiveNucifraga caryocatactes. DOI. DOI jew paġna tal-artiklu.
2. Il-forma u l-funzjoni tal-ilsien (doi.org)
   2010. Titolu oriġinali: Functional Morphology of the Tongue in the Nutcracker (Nucifraga caryocatactes). DOI. DOI jew paġna tal-artiklu.
3. Territorju ta’ forma oħxon (doi.org)
   1956. Titolu oriġinali: TERRITORY IN THE THICK‐BILLED NUTCRACKER NUCIFRAGA CARYOCATACTES.. DOI. DOI jew paġna tal-artiklu.
4. Ħsad taċ-ċanga, invażjonijiet u movimenti fl-Ewropa (doi.org)
   1933. Titolu oriġinali: The Crop of Cedar Nuts, Invasions Into Europe of the Siberian Nutcracker (Nucifraga caryocatactes macrorhynchus Brehm) and Fluctuations in Numbers of the Squirrel (Sciurus vulgaris L.). DOI. DOI jew paġna tal-artiklu.
5. Riżorsi u movimenti tal-ħarifa fl-Alpi (doi.org)
   1999. Titolu oriġinali: Effects of resource availability and distribution on autumn movements of the Nutcracker Nucifraga caryocatactes in the Alps. DOI. DOI jew paġna tal-artiklu.
6. Ekoloġija u rwol fil-foresti tall cembra (ci.nii.ac.jp)
   1978. Titolu oriġinali: Der Tannenhäher (Nucifraga caryocatactes (L.)) im Engadin : Studien zu seiner Ökologie und Funktion im Arvenwald (Pinus cembra L.). DOI jew paġna tal-artiklu.
7. Struttura ġenetika fil-Palearctic (doi.org)
   2014. Titolu oriġinali: Limited geographic genetic structure detected in a widespread Palearctic corvid, Nucifraga caryocatactes. DOI. test sħiħ b’xejn/kopja miftuħa.
8. Il-firxa tad-dar u l-għażla tal-ħabitat fil-ħarifa (doi.org)
   1996. Titolu oriġinali: Home range and habitat selection by the Nutcracker Nucifraga caryocatactes during autumn in the Alps. DOI. DOI jew paġna tal-artiklu.
9. Influwenza fuq it-tiġdid taċ-Ċembra talla (agris.fao.org)
   1998. Titolu oriġinali: Impact of nutcracker (Nucifraga caryocatactes L.) on the spatial distribution of Swiss stone pine (Pinus cembra L.) regeneration. DOI jew paġna tal-artiklu.
10. Temp, pine nuts u feriti minn invażjoni (zin.ru)
    2009. Titolu oriġinali: Relationship between weather conditions, crops of Siberian pine nuts, and irruptions of Siberian Nutcrackers Nucifraga caryocatactes macrorhynchos C.L. Brehm in Siberia and Europe. DOI jew paġna tal-artiklu.

Pyrrhocorax pyrrhocorax

1. Età u prestazzjoni tat-tnissil (onlinelibrary.wiley.com)
   2003. Titolu oriġinali: Age‐specific reproductive performance in red‐billed choughs Pyrrhocorax pyrrhocorax: patterns and processes in a natural population. DOI. test sħiħ b’xejn/kopja miftuħa.
2. Varjazzjoni ambjentali u storja tal-ħajja (onlinelibrary.wiley.com)
   2003. Titolu oriġinali: Environmental variability, life‐history covariation and cohort effects in the red‐billed choughPyrrhocorax pyrrhocorax. DOI. test sħiħ b’xejn/kopja miftuħa.
3. Turiżmu u theddid għall-popolazzjonijiet selvaġġi (onlinelibrary.wiley.com)
   2009. Titolu oriġinali: Tourism in protected areas can threaten wild populations: from individual response to population viability of the chough Pyrrhocorax pyrrhocorax. DOI. test sħiħ b’xejn/kopja miftuħa.
4. Fatturi demografiċi wara t-tkabbir tal-popolazzjoni (onlinelibrary.wiley.com)
   2004. Titolu oriġinali: Identifying the demographic determinants of population growth rate: a case study of red‐billed choughs Pyrrhocorax pyrrhocorax. DOI. test sħiħ b’xejn/kopja miftuħa.
5. Agrikoltura tradizzjonali u żoni importanti ta’ għalf (onlinelibrary.wiley.com)
   1998. Titolu oriġinali: Traditional farming and key foraging habitats for chough Pyrrhocorax pyrrhocorax conservation in a Spanish pseudosteppe landscape. DOI. test sħiħ b’xejn/kopja miftuħa.
6. Viġilanza u distanza għall-ġirien meta jfittxu (doi.org)
   2001. Titolu oriġinali: Vigilance and neighbour distance in foraging flocks of red‐billed choughs, Pyrrhocorax pyrrhocorax. DOI. DOI jew paġna tal-artiklu.
7. Forma tal-ġisem u varjazzjoni ġeografika fiż-żewġ speċi (doi.org)
   2001. Titolu oriġinali: Ecogeographic correlates of morphometric variation in the Red‐billed Chough Pyrrhocorax pyrrhocorax and the Alpine Chough Pyrrhocorax graculus. DOI. DOI jew paġna tal-artiklu.
8. Bini bħala residenzi (hdl.handle.net)
   1997. Titolu oriġinali: Role of buildings as nest-sites in the range expansion and conservation of choughs Pyrrhocorax pyrrhocorax in Spain. DOI. test sħiħ b’xejn/kopja miftuħa.
9. Fatturi ambjentali u sopravivenza qabel it-tnissil (doi.org)
   2008. Titolu oriġinali: Investigating patterns and processes of demographic variation: environmental correlates of pre‐breeding survival in red‐billed choughs Pyrrhocorax pyrrhocorax. DOI. DOI jew paġna tal-artiklu.
10. Kwalità tat-territorju u suċċess tat-tnissil (hal.science)
    2006. Titolu oriġinali: Linking territory quality and reproductive success in the Red‐billed Chough Pyrrhocorax pyrrochorax : implications for conservation management of an endangered population. DOI. test sħiħ b’xejn/kopja miftuħa.

Pyrrhocorax graculus

1. Forma tal-ġisem u varjazzjoni ġeografika fiż-żewġ speċi (doi.org)
   2001. Titolu oriġinali: Ecogeographic correlates of morphometric variation in the Red‐billed Chough Pyrrhocorax pyrrhocorax and the Alpine Chough Pyrrhocorax graculus. DOI. DOI jew paġna tal-artiklu.
2. Id-differenzi fid-daqs bejn is-sessi u l-għażla tas-sieħeb (academic.oup.com)
   2001. Titolu oriġinali: Sexual Size Dimorphism and Positive Assortative Mating in Alpine Choughs (Pyrrhocorax graculus). DOI. test sħiħ b’xejn/kopja miftuħa.
3. Għalf fiż-żewġ speċi fl-Alpi (doi.org)
   1997. Titolu oriġinali: A comparative analysis of the diets of the Chough Pyrrhocorax pyrrhocorax and the Alpine Chough Pyrrhocorax graculus coexisting in the Alps. DOI. DOI jew paġna tal-artiklu.
4. Bijoloġija tat-tgħammir u sopravivenza (doi.org)
   1995. Titolu oriġinali: Breeding biology and survival of the Alpine Chough Pyrrhocorax graculus. DOI. DOI jew paġna tal-artiklu.
5. Varjazzjoni staġjonali fl-ikel u d-densità tal-popolazzjoni (hal.science)
   1999. Titolu oriġinali: The diet of the Chough (Pyrrhocorax pyrrhocorax) and the Alpine Chough (Pyrrhocorax graculus ) in the Alps : seasonality, resource partitioning and population density. DOI. test sħiħ b’xejn/kopja miftuħa.
6. X’jaffettwa d-daqs tal-qatgħa? (doi.org)
   1994. Titolu oriġinali: Factors affecting flock size in the Alpine Chough Pyrrhocorax graculus. DOI. DOI jew paġna tal-artiklu.
7. Ambjent urban u ekoloġija flessibbli għall-għalf fix-xitwa (hal.science)
   2003. Titolu oriġinali: Urbanization and the flexibility of the foraging ecology of the Alpine Chough Pyrrhocorax graculus in winter. DOI. test sħiħ b’xejn/kopja miftuħa.
8. Imġieba għall-għalf fejn iż-żewġ speċi jgħixu flimkien (onlinelibrary.wiley.com)
   1997. Titolu oriġinali: A comparative analysis of the foraging behaviour of the Chough Pyrrhocorax pyrrhocorax and the Alpine Chough Pyrrhocorax graculus coexisting in the Alps. DOI. test sħiħ b’xejn/kopja miftuħa.
9. Tqabbil tal-bijoloġija tat-tnissil fiż-żewġ speċi (onlinelibrary.wiley.com)
   2001. Titolu oriġinali: A comparative analysis of the breeding biology of the Red‐billed Chough Pynhocorax pyrrhocorax and the Alpine Chough P. graculus coexisting in the Alps. DOI. test sħiħ b’xejn/kopja miftuħa.
10. Kif il-ħajja tal-merħla taffettwa l-għalf (doi.org)
    1997. Titolu oriġinali: The influence of flocking on the foraging behaviour of the chough (Pyrrhocorax pyrrhocorax) and the Alpine chough (P. graculus) coexisting in the Alps. DOI. DOI jew paġna tal-artiklu.