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The Woodchat Shrike Lanius senator migrates alongside other trans-Saharan passerines but, unlike other shrikes, it is not known to frequently prey on birds. We describe predation, hunting and scavenging of migratory passerines by Woodchat Shrikes at a spring stopover site in the Sahara Desert. Shrikes preyed on six passerine species. Most predated birds were in poorer physical condition than their conspecifics mist-netted at the same site. We suggest Woodchat Shrikes may be more successful at hunting migratory songbirds following a debilitating barrier crossing, which may render prey more susceptible to capture by avian predators.—Aispuro, A.A., Machowetz, C., Illa, M., Gargallo, G. & Maggini, I. (2020). Woodchat Shrike Lanius senator predation on migrating songbirds during a trans-Saharan stopover.

espanolEl presente informe publica 247 registros estudiados y aceptados por el Comite de Rarezas, relativos a la presencia de 93 taxones de aves raras en el conjunto de Espana. El indice de aceptacion de las citas obtenidas se ha situado en el 92%. Las citas mas destacadas incluidas en el presente informe son las de correlimos grande Calidris tenuirostris –primera para Espana–, cuervo deserticola Corvus ruficollis –primera para Espana–, la subespecie centroeuropea de mito Aegithalos caudatus europaeus –primera para Espana–, pardillo norteno Acanthis flammea flammea –primera para Espana–, cuclillo piquicualdo Coccyzus americanus –segunda para Espana–, zarapito trinador americano Numenius hudsonicus –segunda para Espana–, alcaudon meridional estepario Lanius meridionalis pallidirostris –segunda para Espana–, gaviota cocinera Larus dominicanus –tercera cita para Espana– y correlimos zancolin Calidris himantopus –tercera para Espana. Ademas, se recogen un buen numero de observaciones con interes a nivel regional. Entre ellas destacan las observaciones de petrel gon gon Pterodroma feae –segunda para Espana peninsular–, barnacla carinegra Branta bernicla –un ejemplar de la subespecie groenlandesa hrota, segunda para Canarias–, piquero pardo Sula leucogaster –segunda y tercera para Canarias–, charran sombrio Onychoprion fuscatus –segunda y tercera para Canarias– y charran real Sterna maxima –segunda para Canarias. Tambien se recogieron numeros sin precedentes de pardillo alpino Acanthis flammea cabaret y alondra ibis Alaemon alaudipes, ademas del primer caso de nidificacion en Espana de corneja cenicienta Corvus cornix y un nuevo caso de reproduccion de corredor sahariano Cursorius cursor. Por ultimo, se ha proseguido con la revision de citas relevantes homologadas en el pasado, utilizando los nuevos criterios de identificacion. En este sentido, se rechazan las dos observaciones de avefria coliblanca Vanellus leucurus homologadas en Espana (lo que significa la salida de la especie de la Lista Patron), asi como algunas citas de tarabilla siberiana Saxicola maurus, una cita de gaviota cocinera Larus dominicanus, una de halcon sacre Falco cherrug y una de correlimos acuminado Calidris acuminata. EnglishThis report published 247 records studied and accepted by the Rarities Committee concerning the presence of 93 taxa of rare birds in the whole of Spain. The rate of acceptance of quotations obtained stood at 92%. The most important events included in this report are those of large sandpipers great knot -first to Spain-, desert-brown-necked raven crow -first to Spain- Central European subspecies of long-tailed tit myth europaeus -first to Spain- northern pardillo Acanthis flammea flammea -first to Spain-, yellow-billed cuckoo cuckoo piquicualdo -second to Spain- curlew Numenius American trinador hudsonicus -second to Spain-, southern Shrike southern Gray Shrike estepario -second pallidirostris for Spain- Kelp Gull Kelp Gull -third appointment to Spain- and stilt sandpiper sandpipers zancolin -third to Spain. In addition, a number of observations are collected with interest at the regional level. These include observations of Fea's Petrel petrel gon gon -second for the Peninsular Spain, brent goose Branta bernicla -a copy of the Greenlandic subspecies hrota, second to Canary, brown booby Sula leucogaster -second and third for Canary, dark tern sooty tern -second and third for Canaries and royal tern Sterna maxima -second for the Canaries. record numbers Alpine pardillo Acanthis flammea cabaret and lark ibis Alaemon alaudipes were also collected, in addition to the first case in Spain of nesting hooded crow Hooded Crow and a new case Cream-colored reproduction Cursorius cursor. Finally, it has continued with the review of relevant citations approved in the past, using new identification criteria. In this regard, the two observations of white-tailed lapwing white-tailed lapwing approved in Spain (which means the departure of the species of the Pattern List), as well as some quotes from Siberian Stonechat Saxicola maurus, a quote from Kelp Gull Kelp Gull rejected, a saker falcon Falco cherrug and sandpipers Calidris acuminata one of acuminata.