EAC 38-40, Sioux City, March-May 1968
Page 4
Image from the Biodiversity Heritage Library. Contributed by Smithsonian Institution Archives. | www.biodiversitylibrary.org
Transcription
3. Larus heermanni Heermann's Gull A few immatures were seen offshore on both North and Center Islands. One was noted chasing a Black Oystercatcher. Endomychura hypoleuca Xantus's Murrelet Two separate pairs were seen on the water between North and Center Islands. Oystercatchers Approximately 12 black phase birds and 3-4 of the white-bellied form were observed about the island. Several pairs of blacks were noted and some territorial defense was noted between pairs on the south cove. Numenius americanus Long-billed Curlew Two birds were noted about the island. Heteroscelus incanum Wandering Tattler About six birds were seen about North Island and a few others along the shore on Center Island. Phalaropes About 20 Northern and 5-7 Red Phalaropes were observed feeding in the kelp beds between North and Center Islands. The reds were molting into breeding plumage. LAND BIRDS Falco sparverius 1 adult ♀ Sparrow Hawk Zenaidura macroura 14+ Mourning Dove Archilochus alexandri 1 adult ♂ Black-chinned Hummingbird Empidonax sp.? 20+ Flycatchers Salpinctes obsoletus family group of 2 adults, 2 immatures Rock Wren Wilsonia pusilla 20+ Pileolated Warbler Pheucticus melanocephalus 1 adult ♂ Black-headed Grosbeak Passerina amoena 1 adult ♂, 1 adult ♀ Lazuli Bunting Carpodacus mexicanus 9-12, ♂♂ singing House Finch