VAN DER SPEK V, GROENENDIJK D, BOELE A, BUCKX H, RENSEN N, DE NOBEL P & VAN SPANJE T Breeding ecology of a successfully nesting Eurasian Hoopoe Upupa epops in Noord-Holland in 2020
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VAN NOORDEN B, JANSSEN R & VAN HORSSEN P The Odyssee of the Icterine Warbler Hippolais icterina: migration routes and wintering areas of a long-distance migrant
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VAN OOSTEN H Notes on the breeding biology of Bluethroats Luscinia svecica in Dutch coastal dunes
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KUIPERS H & VAN ELS P Groningen as an important stopover in the annual cycle of the world's northernmost Gull-billed Terns Gelochelidon nilotica
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MELMAN D & JONKER N An exploratory investigation into the function of pre-breeding roosts of Black-tailed Godwits Limosa limosa
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VAN HORSSEN P & KLEEFSTRA R Roosting Little Egrets Egretta garzetta on the Dutch Wadden Sea island Schiermonnikoog
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