NATURAL SCIENCES OF PHILADELPHIA. 149 



Tinnunculus sparverius, Vieill. Nov., Jan. and Feb. 



Accipiter fuscus, Bonap. Jan. 



Buteo swainsoni, Bonap. July. 



Buteo borealis, Vieill. Jan. 



Polyborus Audubonii, Cassin. Jan. 



Athene bypugasa, Bonap. Oct., Jan. 



Bubo virginianus, Bonap. Oct. 



Geococcyx calitbrnianus, Baird. May to Sept. Abundant. 



Coccygus erythrophthalmus, Bp. June to Aug. 



Picus scalaris, Wai/ler. June to Nov. Abundant. 



Centurus flaviventris, Sw. June to Nov. Abundant. 



Antrostomus nuttalli, Cassin. Sept., Feb. 



Chordeiles texensis, Lawr. May to Sept. 



Ceryle alcyon, Bote. Oct. 



Tyranuus verticalis, Say. May. 



Myiarchus crinitus. Cab. Aug. and Sept. 



Myiarchus mexicanus, Baird. Aug. 



Sayornis fuscus, Baird. Nov. 



Sayornis sayus, Baird. Nov., Jan., Feb. 



Contopus virens, Cab. May. 



Empidonax pusillus. Cab. May. 



Empidonax flaviventris, Baird. Aug. 



Turdus migratorius, Lin. Jan. 



Sialia sialis, Baird. Nov. 



Sialia arctica. Swains. Feb. 



Anthus ludovicianus, Licht. Nov., Dec. 



Regulus calendula, Licht. Dec, Feb. 



Geothlypis Philadelphia, Baird. Sept. 



Helminthophaga celata, Baird. Nov., Jan., Feb. 



Dendroica iestiva, Baird. May, Aug., Sept. 



Dendroica corouata, Gray. Dec, Jan. 



Myiodioctes pusillus, Bonap. Sept. 



Pyranga festiva, Vieill. Aug. 



Cotyle serripennis, Boie. May, June, March. 



Ampelis cedrorum, Baird. March. 



CoUyrio excubitoroides, Baird. April and Sept. to Nov., Jan., Feb. 



Vireo gilvus, Bonap. May. 



Vireo belli, Aud. May, June, Aug. 



Mimus polyglottus, Boie. April to Oct., Dec. to Feb. 



Oreoscoptes niontanus, Baird. April, May to Nov., Dec. to March. Abundant. 



Harporhynchus curvirostris, Cassin. April to Nov., Feb. Abundant. 



Harporhynchus longirostris, Cassin. May, Nov., Jan. 



Campylorhynchus brunneicapillus, Grai/. May, June, Nov., Feb. 



Salpinctes obsoletus, Cab. May, Nov., Oct., Dec, Feb. 



Thryothorus bewickii, Bonap. Nov. to Feb. 



Polioptila caerulea, Sclat. July, Aug., Oct. 



Lophophanes atricristatus, Cass. Aug., Nov. 



Paroides flaviceps, Baird. May to Sept., Jan., Feb. Abundant. 



Eremophila cornuta, Boie. Nov., Dec 



Chrysomitris tristis, Bonap, Dec. 



Plectrophanes maccownii, Lawr. Dec. 



Chondestes gramniaca, Bonap. April, Sept. to Nov. Abundant. 



Zonotrichia leucophrys, Sw. April, Dec to Feb. 



Zonotrichia gambelii, Gambol. Jan. 



Poospiza bilineata, Sclat. June to Oct. Abundant. 



Melospiza heermaiini, Baird. Jan. 



Peuciea cassini, Baird. June. 



Melospiza lincolnii, Baird. Dec. 



1868.] 



