Unusual late mass occurrence of the Common Swift (Apus apus (Linnaeus, 1758)) (Aves: Apodidae) in Sofia (Bulgaria)

An observation of about 120 Common Swifts over the central part of the Sofia City on 15 October is reported.

Bibliographic Details
Main Author: ZLATOZAR BOEV
Format: Article in Journal/Newspaper
Language:Bulgarian
English
Published: Plovdiv University 2012
Subjects:
Common swift
avian phenology
autumn migration
urban avifauna
swifts in Bulgaria
Zoology
QL1-991
Apus apus
Online Access:https://doaj.org/article/4a5e98f428d94dc8b84945d412ae1c2a
Description
Summary:An observation of about 120 Common Swifts over the central part of the Sofia City on 15 October is reported.

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